Question 1

Which neurotransmitter is responsible for many of the functions of the frontal lobe?

Accepted Answer

Answer reason: The mesocortical dopamine projection from the ventral tegmental area to the prefrontal cortex is central to these higher-order cognitive and behavioral processes. Disruption of this system is linked to impaired executive function and negative/cognitive symptoms seen in several neuropsychiatric conditions. In contrast, GABA is the main inhibitory neurotransmitter broadly throughout the CNS rather than being the primary modulator classically tied to frontal lobe executive functions.

Question 2

In diagnosing seizure disorder, which of the following is the most beneficial?

Accepted Answer

Answer reason: EEG can capture interictal epileptiform discharges and help classify seizure type, guiding diagnosis and antiseizure medication selection. Neuroimaging (brain scan) is important to evaluate structural causes (e.g., tumor, hemorrhage) but it does not confirm epileptic electrical activity and can be normal in epilepsy. Skull radiographs have minimal value for seizures, and lumbar puncture is reserved for suspected CNS infection/inflammation rather than routine seizure-disorder diagnosis.

Question 3

Which cranial nerve controls tongue movement?

Accepted Answer

Answer reason: Damage to this nerve produces tongue weakness and deviation toward the affected side on protrusion due to unopposed action of the contralateral genioglossus. In contrast, cranial nerve IX is mainly responsible for pharyngeal sensation and stylopharyngeus function, not tongue motor control. Cranial nerve VII influences taste to the anterior two-thirds of the tongue, while cranial nerve X primarily controls palate/pharynx/larynx functions rather than tongue movement.

Question 4

Which CSF finding suggests viral meningitis?

Accepted Answer

Answer reason: This pattern helps distinguish viral from typical bacterial meningitis, which more often shows neutrophil/polymorph predominance. CSF glucose is usually normal in viral meningitis; markedly low glucose is more suggestive of bacterial, tuberculosis, or fungal etiologies. Therefore the finding that best supports a viral cause is a lymphocyte-predominant CSF differential.

Question 5

Involuntary shaking of body is called –?

Accepted Answer

Answer reason: It reflects alternating or synchronous activation of agonist and antagonist muscle groups, commonly seen with disorders affecting basal ganglia, cerebellum, or enhanced physiologic states. A spasm is a sudden, involuntary muscle contraction that is typically localized and not characteristically rhythmic shaking of the whole body. Paralysis indicates loss of voluntary motor function, and vertigo is a false sensation of spinning rather than a motor phenomenon.

Question 6

The most common cause of Epilepsy is?

Accepted Answer

Answer reason: Many cases of epilepsy, especially idiopathic epilepsy, have a genetic basis. Other factors like head injury or alcohol can provoke seizures but are not the most common underlying cause overall.

Question 7

Which cranial nerve is responsible for facial expressions?

Accepted Answer

Answer reason: Lesions of this nerve classically cause facial weakness (e.g., Bell palsy) with impaired forehead wrinkling and inability to close the eye on the affected side. In contrast, trigeminal nerve V primarily supplies facial sensation and mastication muscles rather than expression. Glossopharyngeal IX and vagus X are more involved in pharyngeal/laryngeal function (swallowing, gag reflex, voice) than mimetic facial movement.

Question 8

Inflammation of meninges is called –?

Accepted Answer

Answer reason: Inflammation of these membranes is therefore termed meningitis. Encephalitis refers to inflammation of the brain parenchyma itself, not the meningeal layers. Hepatitis and nephritis refer to inflammation of the liver and kidney, respectively, making them anatomically unrelated.

Question 9

Dementia affects –?

Accepted Answer

Answer reason: Impairment in forming new memories and retrieving information is a hallmark feature that differentiates dementia from normal aging. Hair, skin, and teeth are not primary targets of the neurodegenerative processes that define dementia, even though general self-care may later decline. Therefore the best answer is the cognitive domain most consistently and directly affected.

Question 10

A client with suspected Alzheimer's disease is undergoing diagnostic workup. When the family asks the nurse the reasons for the "tests," the nurse responds that the diagnosis of Alzheimer's disease is usually based on which of the following?

Accepted Answer

Answer reason: Laboratory studies (e.g., thyroid function, B12) and neuroimaging are obtained to rule out metabolic, infectious, medication-related, vascular, or mass-lesion causes, not to “confirm” Alzheimer’s with a single definitive result. CT/MRI may show cerebral atrophy but these findings are nonspecific and cannot establish the diagnosis alone. Therefore the workup is usually framed as an evaluation to exclude other causes that could explain the symptoms or require different treatment.

Question 11

A client arrives at the ER after slipping on a patch of ice and hitting her head. A CT scan of the head shows a collection of blood between the skull and dura mater. Which type of head injury does this finding suggest?

Accepted Answer

Answer reason: This classically occurs after head trauma and is often due to arterial bleeding (commonly from the middle meningeal artery), which can expand rapidly and raise intracranial pressure. By contrast, subdural hematoma is located between the dura and arachnoid, typically from tearing of bridging veins. Subarachnoid hemorrhage is bleeding into the CSF-containing subarachnoid space, and a contusion is bruising of brain tissue rather than a meningeal-space hematoma.

Question 12

A nurse is developing a care plan for a client suffering from shingles. Which of the following cranial nerve should the nurse assess as part of the client’s care?

Accepted Answer

Answer reason: Assessing this nerve focuses on facial symmetry, ability to close the eye, and taste/lacrimation changes, which are clinically important to prevent corneal injury and detect neurologic complications early. Other listed nerves are less characteristic targets: CN I relates to smell, CN IV to extraocular movement, and CN XI to sternocleidomastoid/trapezius strength. Therefore, the facial nerve assessment best aligns with common cranial neuropathy complications of shingles.

Question 13

A thirty five year old male has been an insulin-dependent diabetic for five years and now is unable to urinate. Which of the following would you most likely suspect?

Accepted Answer

Answer reason: This leads to poor detrusor contractility and increased post-void residuals that can progress to inability to void. Diabetic nephropathy more typically causes proteinuria and progressive renal insufficiency rather than acute retention. Somatic neuropathy primarily affects sensory/motor function in limbs and does not directly control bladder emptying.

Question 14

The client recently diagnosed with Guillain-Barré syndrome is drooling and having difficulty swallowing secretions. When the family asks why this occurs, the nurse indicates that which of the following is the cause?

Accepted Answer

Answer reason: When cranial nerves (especially IX and X) are involved, bulbar weakness reduces gag and swallow effectiveness, leading to pooling of saliva, drooling, and difficulty handling secretions. This mechanism fits the pattern of progressive weakness and possible respiratory/bulbar compromise seen in GBS. A vascular midbrain problem would suggest a central stroke syndrome rather than an acute demyelinating peripheral neuropathy. Gland enlargement or vitamin deficiencies do not explain the acute neuromuscular dysphagia typical of cranial nerve involvement in GBS.

Question 15

While assessing a patient with Parkinson's disease, you note the patient's arms slightly jerk as you passively move them toward the patient's body. This is known as what?

Accepted Answer

Answer reason: The described intermittent “slightly jerk” resistance during passive movement reflects superimposed tremor on rigidity, producing a stop-and-go sensation. This finding is a hallmark bedside motor sign of Parkinson’s disease related to basal ganglia dysfunction and dopaminergic deficit. In contrast, lead-pipe rigidity would feel uniformly increased throughout the movement without the ratcheting quality.

Question 16

Nurse Cooper is caring for a 41-year-old male patient who presents with symptoms of chronic progression and mental deterioration. These symptoms suggest a disease characterized by the degeneration of the basal ganglia and cerebral cortex. Nurse Cooper understands that this condition is known as?

Accepted Answer

Answer reason: This pattern matches the pathophysiology of an inherited neurodegenerative disorder causing chronic progression and mental deterioration. Guillain-Barre syndrome is an acute peripheral demyelinating neuropathy, and myasthenia gravis is a neuromuscular junction disorder—neither primarily degenerates basal ganglia or cortex. Multiple sclerosis causes CNS demyelination with relapsing or progressive deficits but is not defined by basal ganglia plus cortical degeneration leading to dementia as the core feature.

Question 17

Which of the following conditions is an early symptom commonly seen in myasthenia gravis?

Accepted Answer

Answer reason: Early manifestations commonly include eyelid drooping and diplopia that worsen with use and improve with rest. Bulbar symptoms like dysphagia can occur but are typically later or indicate more generalized involvement. Respiratory distress suggests myasthenic crisis, which is a severe, late, and emergent complication rather than an early symptom. The fatigue pattern described in the distractor is reversed because MG weakness generally worsens as the day progresses.

Question 18

The nurse is evaluating neurological signs of the male client in spinal shock following spinal cord injury. Which of the following observations by the nurse indicates that spinal shock persists?

Accepted Answer

Answer reason: Persistence of absent reflexes indicates the spinal cord below the lesion remains areflexic and has not transitioned to the post–spinal shock phase. Return of reflex activity (e.g., hyperreflexia) is a classic sign that spinal shock is resolving and upper motor neuron signs are emerging. Reflex bladder emptying similarly reflects return of spinal reflex arcs, which would argue against ongoing spinal shock.

Question 19

Which neurotransmitter is responsible for may of the functions of the frontal lobe?

Accepted Answer

Answer reason: The frontal lobe receives prominent dopaminergic input (notably via mesocortical pathways), and disrupted dopamine signaling is strongly linked to impaired executive function and disorders affecting frontal regulation. This makes dopamine the best match when a question broadly asks which neurotransmitter is responsible for many frontal-lobe functions. In contrast, GABA is primarily the major inhibitory transmitter throughout the CNS rather than a specific driver of frontal executive functions, while histamine and norepinephrine are more associated with arousal/sleep-wake and alertness/stress responses, respectively.

Question 20

A client arrives at the ER after slipping on a patch of ice and hitting her head. A CT scan of the head shows a collection of blood between the skull and dura mater. Which type of head injury does these findings suggest?

Accepted Answer

Answer reason: This most often results from arterial injury (classically the middle meningeal artery) after head trauma, producing a rapidly expanding mass effect on CT. In contrast, subdural hematoma is located between the dura and arachnoid due to bridging vein rupture, while subarachnoid hemorrhage is within the subarachnoid space and follows CSF pathways. A cerebral contusion is parenchymal bruising rather than an extra-axial blood collection.

Question 21

During the client education class, the nurse is asked, “What is an effective treatment for seasonal affective disorder?” Which intervention should the nurse recommend as an evidence-based practice for the first-line treatment of seasonal affective disorder?

Accepted Answer

Answer reason: Bright light therapy is considered first-line because it can rapidly improve symptoms during fall/winter episodes and has a favorable safety profile when used correctly. Quetiapine is not a standard first-line therapy for SAD and carries metabolic and sedation risks that outweigh benefit for typical presentations. Lithium is used for bipolar disorder and is not an appropriate short “trial” for SAD, given monitoring needs and toxicity risk. Psychotherapy can be helpful (often as adjunct), but it is not the primary first-line evidence-based intervention compared with light therapy for SAD.

Question 22

Which of the following describes decerebrate posturing?

Accepted Answer

Answer reason: Decerebrate posturing reflects severe brainstem dysfunction at or below the level of the red nucleus, producing unopposed extensor tone via vestibulospinal pathways. Clinically it presents as extension and internal rotation/adduction of the upper extremities with extension of the lower extremities, often with opisthotonos (back arching). This pattern indicates a more serious neurologic injury than flexor (decorticate) posturing, which is associated with lesions above the red nucleus. The stem asks for the posture description, and the option describing rigid extension of all extremities with back arching matches the classic exam definition.

Question 23

The nurse has attended a staff education program about spinal shock following acute spinal cord injury. Follow-up is required if the nurse states that manifestations of spinal shock include?

Accepted Answer

Answer reason: During this phase, motor tone and reflexes are depressed, producing flaccid paralysis and areflexia rather than increased tone. Autonomic dysfunction is common, so bowel and bladder dysfunction and sensory loss below the lesion are expected findings. Spasticity and hyperreflexia develop later as spinal shock resolves and upper motor neuron features emerge, making this statement the one requiring follow-up.

Question 24

A male client with Bell’s Palsy asks the nurse what has caused this problem. The nurse’s response is based on an understanding that the cause is?

Accepted Answer

Answer reason: The leading accepted mechanisms involve inflammation and edema of the facial nerve within the fallopian canal, frequently associated with viral reactivation (classically HSV-1), and can also relate to ischemia or immune-mediated neuritis. This option accurately reflects the multifactorial, largely idiopathic nature of the condition while naming the major plausible contributors. The genetic/meningitis/neurotoxin options are not typical primary etiologies for the common presentation of Bell’s palsy, and “long-term tissue malnutrition/cellular hypoxia” does not match the usual acute neuropathic mechanism.

Question 25

An elderly client that is suffering from Alzheimer’s disease is seen by the nurse using a toothbrush to brush her hair. The nurse understands that this client is manifesting?

Accepted Answer

Answer reason: Apraxia is impaired ability to perform purposeful, learned motor tasks despite adequate strength and coordination, commonly seen in Alzheimer’s disease due to cortical dysfunction. Using a toothbrush for hair indicates a breakdown in planning and sequencing the correct use of an everyday object (a tool-use error). Aphasia and anomia primarily affect language (speech production/comprehension or naming), not the execution of a motor plan. Agnosia is an inability to recognize objects or their meaning; here the problem is using the object appropriately rather than recognizing it.

Question 26

During the tonic clonic seizures the tonic phase is characterized by?

Accepted Answer

Answer reason: This is distinct from the clonic phase, which features rhythmic, repetitive jerking movements of the limbs. Loss of consciousness typically occurs at seizure onset and is not the defining motor feature of the tonic phase. Confusion is more characteristic of the postictal period after the seizure ends.

Question 27

The part of the brain responsible for muscular coordination and stability is?

Accepted Answer

Answer reason: Damage to this region classically causes ataxia, dysmetria, intention tremor, and gait instability—direct markers of impaired coordination and stability. By contrast, the medulla primarily regulates vital autonomic functions (respiration, heart rate) and the pons serves as a relay with roles in arousal and respiratory modulation rather than primary coordination control. The cerebrum initiates and plans voluntary movement but does not provide the moment-to-moment calibration needed for stable coordination.

Question 28

Which part of the brain is responsible for balance?

Accepted Answer

Answer reason: Damage to this area classically produces ataxia, unsteady wide-based gait, dysmetria, and difficulty with rapid alternating movements. The cerebrum is mainly responsible for higher cognitive functions and voluntary motor planning rather than equilibrium control. The medulla and pons regulate vital autonomic and brainstem functions (e.g., respiration, cardiovascular control) and relay pathways, not the primary coordination center for balance.

Question 29

Migraine attacks which part ...?

Accepted Answer

Answer reason: The pain is generated through activation of the trigeminovascular system and inflammatory neuropeptide release around cranial vessels and meninges, producing head pain rather than pain from thoracic or abdominal organs. Therefore the affected body part in a migraine attack is the head. Options such as lungs, kidney, and liver are not sites of migraine pathophysiology and would suggest other disease processes if painful.

Question 30

Stroke is due to lack of?

Accepted Answer

Answer reason: Stroke results from acute loss of oxygen delivery to brain tissue (cerebral ischemia) or hemorrhage that disrupts perfusion, leading to neuronal injury within minutes. The key pathological problem in both ischemic and hemorrhagic stroke is failure of cerebral oxygenation and metabolism, producing focal neurologic deficits. While reduced blood flow is the usual mechanism in ischemic stroke, the clinically tested endpoint causing damage is oxygen deprivation at the tissue level. Water and vitamin deficiency are not the primary immediate causes of stroke.

Question 31

What is the leading cause of cognitive impairment in old age?

Accepted Answer

Answer reason: The leading cause of chronic, progressive cognitive impairment (dementia) in older adults is neurodegenerative disease, most commonly Alzheimer’s. It produces a gradual decline in memory and executive function over years, making it the most prevalent etiology of late-life cognitive impairment. Stroke can cause vascular cognitive impairment, but it is typically the second most common cause and often has a stepwise course linked to cerebrovascular events. Malnutrition and reduced cardiac reserve may contribute to delirium, frailty, or reduced function, but they are not the primary population-level cause of persistent cognitive impairment in old age.

Question 32

What statement made by the student regarding meningiomas requires further instruction?

Accepted Answer

Answer reason: " Meningiomas are typically slow-growing, extra-axial tumors that are often amenable to active management depending on size, location, symptoms, and growth. Standard interventions include surgical resection when accessible and symptomatic, and radiation therapy (e.g., stereotactic radiosurgery) for residual, recurrent, or inoperable lesions. Observation with serial imaging is also a common management strategy for small, asymptomatic tumors, which still constitutes an intervention plan. Therefore, stating that no treatment or intervention exists reflects a misunderstanding of established therapeutic options.

Question 33

What does failure of reflexes to appear or disappear within a specific time range suggest?

Accepted Answer

Answer reason: Persistence beyond the normal age window or absence when expected indicates abnormal CNS development or injury affecting brainstem/cortical pathways. This finding is more consistent with neurologic dysfunction than bone or joint problems, which would not typically alter reflex timing patterns. Although increased tone can be associated with upper motor neuron disorders, it is a sign rather than the broader diagnostic implication of abnormal reflex timing.

Question 34

A patient with Alzheimer's disease picks up her toothbrush and tries to brush her hair. This behavior is known as?

Accepted Answer

Answer reason: Using a toothbrush with the wrong sequence/goal (attempting to brush hair) reflects impaired motor planning and execution of a familiar activity. Aphasia would primarily affect language expression or comprehension, not the performance of the task itself. Agnosia is failure to recognize objects (e.g., not knowing what a toothbrush is), and anomia is word-finding difficulty; neither best explains misusing the object in an activity.

Question 35

Hydrocephalus is most common in?

Accepted Answer

Answer reason: g., aqueductal stenosis, neural tube defects) or from perinatal/intraventricular hemorrhage in premature infants. In infants, open cranial sutures and fontanelles allow head enlargement, making diagnosis common in this age group and reflecting the higher incidence of congenital etiologies. While older adults can develop normal-pressure hydrocephalus, it is less common overall than pediatric hydrocephalus. Teenagers and non-elderly adults have comparatively lower incidence unless secondary to trauma, tumors, or infection.

Question 36

Reflex actions are controlled by?

Accepted Answer

Answer reason: Most basic reflex arcs are integrated at the spinal cord level, where sensory input synapses (directly or via interneurons) onto motor neurons to produce an immediate response without needing cortical processing. Higher brain centers can modulate reflex intensity, but they are not required for initiating typical spinal reflexes like the patellar reflex. The cerebellum primarily coordinates movement and balance, and the pons is mainly involved in relay and autonomic functions rather than serving as the primary controller of common reflex actions.

Question 37

Priapism may be a sign of?

Accepted Answer

Answer reason: g., spinal cord lesions) or autonomic dysfunction. Neurologic disruption can impair sympathetic outflow needed for detumescence, leading to sustained cavernosal engorgement. The other options are nonspecific or incorrect as primary associations; urinary incontinence is not a typical sign causing priapism, and “imminent death” is not an evidence-based linkage. While priapism involves the reproductive organ, the key tested concept is neurologic/autonomic control rather than a primary reproductive system failure.

Question 38

Eating behavior is controlled by?

Accepted Answer

Answer reason: The hypothalamus contains key nuclei (e.g., arcuate, lateral hypothalamic area, ventromedial nucleus) that coordinate hunger and satiety through neurotransmitters and responses to leptin, ghrelin, and insulin. This makes it the primary controller of feeding behavior rather than peripheral endocrine organs. Thyroid and adrenal hormones can influence metabolic rate and stress responses, and the pancreas influences glucose balance, but none serves as the central appetite-control hub.

Question 39

Which pain theory describes the transmission of pain via small, large, slowly conducting, and rapidly conducting nerve fibers to the dorsal horn?

Accepted Answer

Answer reason: Pain modulation in the spinal cord depends on the balance of activity in different afferent fiber types entering the dorsal horn. explains how small-diameter nociceptive fibers (A-delta and C) and large-diameter mechanoreceptive fibers (A-beta) interact at the substantia gelatinosa to either facilitate or inhibit transmission to second-order neurons. Increased large-fiber input (e.g., touch/rubbing) can inhibit nociceptive signaling via inhibitory interneurons, effectively “closing” the gate. The other theories focus on labeled-line specificity or patterns/intensity of peripheral stimulation rather than dorsal horn gating by competing fiber inputs.

Question 40

Migraine is usually associated with?

Accepted Answer

Answer reason: Visual aura (e.g., scintillating scotoma, flashing lights, zigzag lines) is a classic associated feature and may occur with or without the headache phase. High fever is more suggestive of infection (e.g., meningitis/encephalitis) rather than a primary headache disorder. Chest pain and diarrhea are not typical primary associations of migraine, though nausea/vomiting and photophobia/phonophobia are common.

Question 41

Main treatment for hydrocephalus is?

Accepted Answer

Answer reason: A ventriculoperitoneal shunt provides continuous drainage from the ventricles to the peritoneal cavity, directly addressing the underlying pressure/volume problem. Antibiotics are only indicated when hydrocephalus is due to or complicated by infection but do not correct CSF flow obstruction or impaired absorption. Physiotherapy and oxygen therapy may support function or oxygenation but do not treat the cause of ventricular dilation.

Question 42

The part of neuron that receives signals is?

Accepted Answer

Answer reason: Dendrites have a large surface area and contain postsynaptic receptors that convert neurotransmitter binding into graded potentials. These inputs are integrated at the soma/axon hillock to determine whether an action potential is generated. By contrast, the axon is specialized for transmitting action potentials to downstream targets rather than receiving most synaptic input.

Question 43

Inflammation of spinal cord is ...?

Accepted Answer

Answer reason: Therefore, inflammation of the spinal cord is termed myelitis, as in transverse myelitis. By contrast, neuritis refers to inflammation of a peripheral nerve, gastritis to inflammation of the stomach lining, and nephritis to inflammation of the kidney. Matching the anatomic root to the organ involved makes this a straightforward definition-based item.

Question 44

A nurse is caring for a client who experienced a C5 spinal cord injury with paralysis 2 weeks ago. Which of the following findings indicates that spinal shock is resolving?

Accepted Answer

Answer reason: Resolution is marked by the return of spinal reflex activity, often beginning with pathologic reflexes before more normal reflex patterns re-emerge. The reappearance of an upper motor neuron sign such as the plantar (Babinski) response indicates that reflex arcs are no longer suppressed and spinal shock is waning. Hypoactive deep tendon reflexes suggests ongoing areflexia rather than recovery, and normal oxygen saturation or hematocrit does not reflect restoration of spinal reflex function.

Question 45

A patient presents to the ER following a motor vehicle accident. The nurse assesses that the patient is unable to move legs and has poor reflexes. What additional assessment data would support the diagnosis of spinal shock?

Accepted Answer

Answer reason: Spinal shock is characterized by a transient loss of all neurologic function below the level of acute spinal cord injury, producing flaccid paralysis and areflexia along with sensory loss. Since the patient already demonstrates motor paralysis and diminished reflexes in the legs, an associated reduction in sensation would further support this diagnosis. Autonomic findings like hypotension and bradycardia are more characteristic of neurogenic shock from sympathetic disruption, not the core defining feature of spinal shock. Upper-extremity weakness would only be expected with a higher-level lesion and does not specifically establish the diagnosis.

Question 46

Hydrocephalus means ?

Accepted Answer

Answer reason: The term breaks down to “hydro” (water/fluid) and “cephalus” (head/brain), pointing to a fluid problem in the cranial vault. This matches the option describing fluid in the brain region. Alternatives like fluid in lungs or kidney describe other pathologies (e.g., pulmonary edema, hydronephrosis) and do not reflect ventricular CSF buildup.

Question 47

Which cranial nerve is responsible for the sense of smell?

Accepted Answer

Answer reason: Loss or reduction of smell (anosmia/hyposmia) localizes to this pathway and is a classic cranial nerve I finding. In contrast, the optic nerve (II) is for vision and the oculomotor nerve (III) controls most extraocular movements and pupillary constriction. The facial nerve (VII) contributes to taste from the anterior two-thirds of the tongue, not primary smell.

Question 48

A typical cry in hydrocephalus infant is?

Accepted Answer

Answer reason: Hydrocephalus raises ventricular volume and can elevate intracranial pressure, making this cry a classic clinical sign along with bulging fontanelle, irritability, and increasing head circumference. A normal cry would not reflect neurologic compromise. “Laughing cry” is more classically associated with conditions like Angelman syndrome rather than hydrocephalus.

Question 49

Common complication of VP shunt?

Accepted Answer

Answer reason: This complication is frequent enough that it is a key expected problem after shunt placement and a major cause of shunt revision. The other choices are nonspecific and are not typical direct complications of a ventriculoperitoneal diversion device. A high-yield clinical corollary is that obstruction presents with worsening headache, vomiting, lethargy, and bulging fontanelle in infants, reflecting returning hydrocephalus.

Question 50

The junction where neurons communicate is?

Accepted Answer

Answer reason: This junction is the synapse, which consists of a presynaptic terminal, synaptic cleft, and postsynaptic membrane with receptors. An axon terminal is only the presynaptic part of this junction, not the junction itself. Cortex and node refer to brain tissue/regions and myelin-related structures respectively, not the site of neuron-to-neuron communication.

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