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Neuroanatomy and Cranial Nerves
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Neuroanatomy and Cranial Nerves
Neuroanatomy and Cranial Nerves
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1
Question
What are the three primary brain vesicles?
Page 1
Answer
Forebrain (prosencephalon), midbrain (mesencephalon), and hindbrain (rhombencephalon).
2
Question
What are the secondary vesicles derived from the forebrain?
Page 1
Answer
Telencephalon and diencephalon.
3
Question
Which secondary brain vesicle gives rise to the retina?
Page 1
Answer
Diencephalon.
4
Question
Which cerebral artery supplies the cortical areas controlling the legs?
Page 2
Answer
Anterior cerebral artery.
5
Question
Which two cranial nerves form the afferent and efferent limbs of the gag reflex?
Page 4
Answer
CN IX is the afferent limb; CN X is the efferent limb.
6
Question
Which sign is positive when passive neck flexion causes involuntary knee or hip flexion?
Page 2
Answer
Brudzinski sign.
7
Question
Which meningeal sign is positive if leg extension causes pain?
Page 2
Answer
Kernig sign.
8
Question
Which artery do bilateral vertebral arteries form when they merge?
Page 2
Answer
Basilar artery.
9
Question
Which vessel is usually injured in an extradural hematoma?
Page 2
Answer
Middle meningeal artery.
10
Question
What CT scan shape characterizes an epidural hematoma?
Page 2
Answer
Convex shaped.
11
Question
Which vessels are usually injured in a subdural hematoma?
Page 2
Answer
Bridging veins.
12
Question
What CT scan shape characterizes a subdural hematoma?
Page 2
Answer
Crescent shaped.
13
Question
Which artery supplies the occipital lobe?
Page 2
Answer
Posterior cerebral artery.
14
Question
Which structure is affected in conduction aphasia?
Page 1
Answer
Arcuate fasciculus.
15
Question
Which aphasia combines Broca’s and Wernicke’s aphasia?
Page 1
Answer
Global aphasia.
16
Question
Which nerve provides sensory supply above the tentorium cerebelli?
Page 1
Answer
Trigeminal nerve.
17
Question
Which nerves provide sensory supply below the tentorium cerebelli?
Page 1
Answer
The first three cervical nerves.
18
Question
Which lobe of the cerebellum coordinates voluntary movement?
Page 2
Answer
Posterior lobe (neocerebellum or cerebrocerebellum).
19
Question
Which lobe of the cerebellum coordinates limb movements?
Page 2
Answer
Anterior lobe (paleocerebellum or spinocerebellum).
20
Question
Which cerebellar lobe coordinates paraxial muscles associated with equilibrium?
Page 2
Answer
Flocculonodular lobe (archicerebellum or vestibulocerebellum).
21
Question
Which cranial nerve exits the brain dorsally and has the longest intracranial course?
Page 2
Answer
CN IV (trochlear nerve).
22
Question
Which cranial nerve has the longest vertical intracranial course?
Page 2
Answer
CN VI (abducens nerve).
23
Question
Which nerve innervates the stapedius muscle?
Page 2
Answer
CN VII (facial nerve).
24
Question
Which nerve innervates the stylopharyngeus muscle?
Page 2
Answer
CN IX (glossopharyngeal nerve).
25
Question
Which cranial nerve is the only one that reaches the thorax and abdomen?
Page 2
Answer
CN X (vagus nerve).
26
Question
Which cranial nerve supplies all facial muscles?
Page 2
Answer
Facial nerve (CN VII).
27
Question
Which cranial nerve supplies all muscles of mastication?
Page 2
Answer
Mandibular division of the trigeminal nerve (V3).
28
Question
Which muscle is the exception to the muscles that close the mouth?
Page 2
Answer
Lateral pterygoid muscle; it opens the mouth.
29
Question
Which nerve innervates the muscles of the anterior two-thirds of the tongue for taste?
Page 3
Answer
Chorda tympani.
30
Question
Which nerve forms the afferent limb of the corneal blink reflex?
Page 3
Answer
Nasociliary nerve of the ophthalmic division of the trigeminal nerve (CN V1).