Anatomy Case: cranial nerves?
A patient suffered a traumatic brain injury, her symptoms are:
a. Loss of recent memory:
b. Difficulty in adducting her right eye.
c. Drooping of right eye lid
d. Loss of pupil constriction in her right eye
e. Loss of tang on the back of the tongue
f. Loss of sensation on the right cheek
g. The tongue deviates to the left
Please help me. I enjoy never taken anatomy and this summer science class I am taking expects me to learn 3 different systems in a week! I need to know for respectively symptoms which cranial nerve is being affected. All I know is at hand are 12 cranial nerves, but I dont know the function of them all. Also a site of all the cranial nerves will help. Thanks
Answers:
a. Not specific to a cranial rudeness. Amnesia for recent events is common in moderate to severe head injuries, whether or not a hint cranial nerve is damaged.
b. Right IIIrd (oculomotor) nerve. When this fortitude is damaged, the eye usually points down and out.
c. Right IIIrd (oculomotor) nerve. The muscle lifting the upper lid is levator palpebrae superioris - some of the nerve fibre to this muscle belong to the sympathetic nervous system. These fibres only marry the oculomotor nerve inside the orbit (eye socket) - they reach this point from the stellate ganglion, and travel along the carotid and opthalmic arteries. If only the sympathetic fibre are damaged, there will be only partial drooping of the eyelid (partial ptosis).
d. Right IIIrd (oculomotor) gall. The fibres controlling pupil constriction are parasympathetic. They originate in the Edinger-Westphal nucleus of the midbrain, travel surrounded by III and synapse in the ciliary ganglion in the orbit. The post-synaptic nerves go directly to the sphere (eyeball).
e. IXth (glossopharyngeal) nerve.
f. Right Vth (trigeminal) nerve. More specifically maxillary division likely.
g. Left XIIth (hypoglossal) rudeness.
These things will be covered in any anatomy textbook.
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a. Loss of recent memory:
b. Difficulty in adducting her right eye.
c. Drooping of right eye lid
d. Loss of pupil constriction in her right eye
e. Loss of tang on the back of the tongue
f. Loss of sensation on the right cheek
g. The tongue deviates to the left
Please help me. I enjoy never taken anatomy and this summer science class I am taking expects me to learn 3 different systems in a week! I need to know for respectively symptoms which cranial nerve is being affected. All I know is at hand are 12 cranial nerves, but I dont know the function of them all. Also a site of all the cranial nerves will help. Thanks
Answers:
a. Not specific to a cranial rudeness. Amnesia for recent events is common in moderate to severe head injuries, whether or not a hint cranial nerve is damaged.
b. Right IIIrd (oculomotor) nerve. When this fortitude is damaged, the eye usually points down and out.
c. Right IIIrd (oculomotor) nerve. The muscle lifting the upper lid is levator palpebrae superioris - some of the nerve fibre to this muscle belong to the sympathetic nervous system. These fibres only marry the oculomotor nerve inside the orbit (eye socket) - they reach this point from the stellate ganglion, and travel along the carotid and opthalmic arteries. If only the sympathetic fibre are damaged, there will be only partial drooping of the eyelid (partial ptosis).
d. Right IIIrd (oculomotor) gall. The fibres controlling pupil constriction are parasympathetic. They originate in the Edinger-Westphal nucleus of the midbrain, travel surrounded by III and synapse in the ciliary ganglion in the orbit. The post-synaptic nerves go directly to the sphere (eyeball).
e. IXth (glossopharyngeal) nerve.
f. Right Vth (trigeminal) nerve. More specifically maxillary division likely.
g. Left XIIth (hypoglossal) rudeness.
These things will be covered in any anatomy textbook.
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