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NR 507 Edapt Week 8: CNS Brain Disorders –
Convulsions, Headaches & Cranial Nerves | Complete
Study Guide | Graded A+
1. Which phase of a generalized tonic-clonic seizure is characterized by alternating muscle
contraction and relaxation?
A. Tonic phase
B. Aura phase
C. Postictal phase
D. Clonic phase
Correct Answer: D
Explanation: The clonic phase is defined by the rhythmic, alternating contraction and
relaxation of muscles following the initial stiffening of the tonic phase. The tonic phase
involves sustained muscle contraction, the aura is a subjective warning sensation, and
the postictal phase is characterized by confusion and recovery.
2. A patient describes a sense of "pins and needles" on their face prior to a seizure. This
subjective sensation is known as:
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A. Automatism
B. Aura
C. Status epilepticus
D. Clonus
Correct Answer: B
Explanation: An aura is a focal seizure that occurs before a larger seizure and is
experienced as a subjective sensory or psychological phenomenon. Automatisms are
repetitive movements, status epilepticus is prolonged seizure activity, and clonus refers
to rhythmic muscle contractions.
3. Which cranial nerve is responsible for the motor innervation of the muscles of
mastication (chewing)?
A. Cranial Nerve VII (Facial)
B. Cranial Nerve IX (Glossopharyngeal)
C. Cranial Nerve V (Trigeminal)
D. Cranial Nerve XII (Hypoglossal)
Correct Answer: C
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Explanation: The Trigeminal nerve (CN V) provides motor innervation to the muscles of
mastication and sensory innervation to the face. CN VII controls facial expression, CN IX
controls swallowing and taste, and CN XII controls tongue movement.
4. What is the clinical hallmark of a cluster headache?
A. Bilateral, band-like pressure around the head
B. Generalized throbbing pain lasting several days
C. Gradual onset with nausea and photophobia
D. Unilateral, severe periorbital pain with autonomic symptoms
Correct Answer: D
Explanation: Cluster headaches are characterized by excruciating, unilateral pain
concentrated around the eye, often accompanied by tearing, nasal congestion, or
ptosis. The pain is deep, explosive, and excruciating with rapid onset and duration of 30
minutes to 3 hours.
5. In Multiple Sclerosis, the immune system primarily attacks which structure in the central
nervous system?
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A. The axonal cell body
B. The neurotransmitter receptors
C. The synaptic cleft
D. The myelin sheath
Correct Answer: D
Explanation: Multiple Sclerosis is an autoimmune demyelinating disease where the
myelin sheath surrounding CNS axons is destroyed. This leads to impaired nerve signal
transmission and the characteristic symptoms of MS.
6. A patient presents with a "thunderclap" headache, described as the worst headache of
their life. This is most suggestive of:
A. Subarachnoid hemorrhage
B. Migraine with aura
C. Tension-type headache
D. Temporal arteritis
Correct Answer: A
Explanation: A sudden, extremely severe "thunderclap" headache is a classic
NR 507 Edapt Week 8: CNS Brain Disorders –
Convulsions, Headaches & Cranial Nerves | Complete
Study Guide | Graded A+
1. Which phase of a generalized tonic-clonic seizure is characterized by alternating muscle
contraction and relaxation?
A. Tonic phase
B. Aura phase
C. Postictal phase
D. Clonic phase
Correct Answer: D
Explanation: The clonic phase is defined by the rhythmic, alternating contraction and
relaxation of muscles following the initial stiffening of the tonic phase. The tonic phase
involves sustained muscle contraction, the aura is a subjective warning sensation, and
the postictal phase is characterized by confusion and recovery.
2. A patient describes a sense of "pins and needles" on their face prior to a seizure. This
subjective sensation is known as:
,2
A. Automatism
B. Aura
C. Status epilepticus
D. Clonus
Correct Answer: B
Explanation: An aura is a focal seizure that occurs before a larger seizure and is
experienced as a subjective sensory or psychological phenomenon. Automatisms are
repetitive movements, status epilepticus is prolonged seizure activity, and clonus refers
to rhythmic muscle contractions.
3. Which cranial nerve is responsible for the motor innervation of the muscles of
mastication (chewing)?
A. Cranial Nerve VII (Facial)
B. Cranial Nerve IX (Glossopharyngeal)
C. Cranial Nerve V (Trigeminal)
D. Cranial Nerve XII (Hypoglossal)
Correct Answer: C
,3
Explanation: The Trigeminal nerve (CN V) provides motor innervation to the muscles of
mastication and sensory innervation to the face. CN VII controls facial expression, CN IX
controls swallowing and taste, and CN XII controls tongue movement.
4. What is the clinical hallmark of a cluster headache?
A. Bilateral, band-like pressure around the head
B. Generalized throbbing pain lasting several days
C. Gradual onset with nausea and photophobia
D. Unilateral, severe periorbital pain with autonomic symptoms
Correct Answer: D
Explanation: Cluster headaches are characterized by excruciating, unilateral pain
concentrated around the eye, often accompanied by tearing, nasal congestion, or
ptosis. The pain is deep, explosive, and excruciating with rapid onset and duration of 30
minutes to 3 hours.
5. In Multiple Sclerosis, the immune system primarily attacks which structure in the central
nervous system?
, 4
A. The axonal cell body
B. The neurotransmitter receptors
C. The synaptic cleft
D. The myelin sheath
Correct Answer: D
Explanation: Multiple Sclerosis is an autoimmune demyelinating disease where the
myelin sheath surrounding CNS axons is destroyed. This leads to impaired nerve signal
transmission and the characteristic symptoms of MS.
6. A patient presents with a "thunderclap" headache, described as the worst headache of
their life. This is most suggestive of:
A. Subarachnoid hemorrhage
B. Migraine with aura
C. Tension-type headache
D. Temporal arteritis
Correct Answer: A
Explanation: A sudden, extremely severe "thunderclap" headache is a classic
