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Point 21
Intro
Pathway
Deficit
Clinical
Overview
Problems
Contents
Anatomy
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PROBLEM
SOLVING #1
Which statement is
TRUE regarding the shaded areas below?
All
parts of the response must be
correct.
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cells project to the left
dilator pupillae muscle
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pathway terminates on cells in the
left nucleus ambiguus, some axons
in the pathway terminate on cells in the
right lumbar spinal cord, and
pathway terminates on cells in the
ventral portion of the left
motor VII
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pathway terminates on cells in the
left motor V, pathway
terminates on cells in the dorsal
portion of the right motor
VII, pathway terminates on cells in
the lower portion of the
left motor VII, pathway
terminates on cells in the cervical cord
on the right side of the spinal
cord, and pathway terminates on cells in
the right nucleus ambiguus
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pathway arises from cells in the
inferior colliculus, and pathway arises
from cells in the left motor cortex
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cells project to the left
ciliary ganglion, cells project to the
left superior rectus, and a major
descending pathway is damaged upon
left uncal herniation
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PROBLEM
SOLVING #2
Which statement below
is TRUE regarding the neurological
deficit(s) that would be present following
a lesion of the shaded areas below? There
may be deficits that are not included in
the responses. All
parts of the response must be
correct.
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left eye deviated up and in
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subtle auditory deficits, and deviation
of the uvula to the right upon
elevation of the soft palate
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a dilated pupil in the
left eye, right hemiplegia, and
deviation of the tongue to the
right upon protrusion
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deviation of the tongue to the
right upon protrusion and deviation
of the jaw to the left upon jaw
opening
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ptosis of left eyelid, and
weakness of the muscles below the eye on
the left side of the face
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PROBLEM
SOLVING #3
Which statement
is TRUE regarding the shaded area below?
All
parts of a statement must be true for the
choice to be correct.
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axons arise from cells in the
left Edinger-Westphal nucleus
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lesion results in ptosis of the
right eyelid, and lesion results in
a dilated pupil in the left
eye
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axons terminate directly on the
constrictor pupillae muscle of the
right eye, and lesion results in
double vision (if right eyelid
manually elevated)
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axons terminate in the inferior rectus
muscle of the right eye
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axons terminate in the right
superior oblique muscle
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