NEURO 2 Flashcards
1 The following statements are true of the trigeminal
nerve, EXCEPT:
I It branches into three major divisions:
ophthalmic, maxillary and mandibular
Il. It is the sensory nerve of the face, mouth, teeth
and nose
III. This is also the fifth cranial nerve
IV. It is the motor nerve to the four muscles of mastication
a. All of these
B. I, II, III
C. II, IV
D. none
E. I and III
D
Ptosis of the upper eyelid is an abnormality which
may be due to the following conditions, EXCEPT:
I.Myasthenia gravis
II. Third nerve paresis
III. Horners syndrome
IV. Edema due to infection, trauma or venous stasis
A. I, II, III
B. I, III
C. II, IV
D. all of these
E. None of these
E
Lesion to the oculomotor nerve results in the
following conditions:
I. Ptosis
II. Miosis
III. External strabismus
IV. Esotropia
a. All of these
b. I, II, III
c. I, II
d . II, IV
e. Only IV
B
Upon observation, the patient has left facial
weakness. He is unable to show his teeth on the left
side. However, he is able to raise his left eyebrow. The therapist suspects:
a. Peripheral cranial nerve 5 lesion
b. Central cranial nerve 5 lesion
c Peripheral cranial nerve 7 lesion
d. Central cranial nerve 7 lesion
D
Which of the following cranial nerve/s is/are NOT
significantly affected by unilateral cerebral lesions?
I. Vagus
II. Hypoglossal
Ill. Accessory
IV. Glossopharyngeal
A. I, III
B. I, II, III
C. all of these
D. Only IV
E. None of these
C
Optic radiation lesions could result in the following
visual field defects:
I. Interruption of the entire radiation gives complete
loss of vision to the opposite side, homonymous
hemianopsia
Il. The more posterior the lesion, the more nearly do
the visual field defects in the two eyes resemble
each other
III. Parietal lobe lesions result to a contralateral
homonymous inferior quadrantanopsia
IV. Temporal lobe lesions result to an ipsilateral
homonymous superior quadrantanopsia
A. All of these
B. None of these
C. I, II, III
D. II, IV
E. Only IV
C
The pupils of the eyes of your patient constricted when asked to shift his gaze on a nearer object, but it did not react when light was shone on either eye. This is known as:
a. Marcus gunn pupil
b. Horner’s syndrome
c. Doll’s eye syndrome
d. Argyll-robertson pupil
e. None of these
D
Injury to the spinal accessory nerve results in the
following:
I Weakness ni rotating the head to the opposite side
Il. Downward and outward rotation of the upper part of the scapula
III. Sagging and weakness in shrugging the shoulder
IV. The tongue deviates to paralyzed side
a. All of these
B. Only iv
C. I, ii, iii
D. I, iii
E. Ii, iv
C
Chiasmal lesions could result in the following visual
defects, EXCEPT:
a. Lesion involving both the optic nerve and the optic chiasm produces ipsilateral blindness and a temporal field defect in the other eye
b. Transection of the optic nerve results in ipsilateral monocular blindness
c. Lesion on the right optic tract results in left homonymous hemianopsia
d. Chiasmal lesion produces bitemporal hemianopsia
e. None of these
E
During cranial nerve testing, a light was directed on your patient’s left eye. You observed that both pupils remained dilated. To further confirm where the problem was, the
right eye was stimulated. You noted that both pupils constricted. What nerve was possibly injured?
a. Right optic
b. Left oculomotor
c. left optic
d. right oculomotor
C
The oculomotor nerve innervates
these muscles of the
eye, except:
I. Superior rectus
Il. Inferior oblique
I. Medial rectus
IV. Superior oblique
a. I & III
b. II & IV.
c. Only iv
d. none of these
e. all of these
C
Apatient suffers from diplopia when he looks down to
the left. What cranial nerve is mo
st probably injured?
a. Right CN 4
b. Left CN 4
c. Right CN 6
d. Left CN 6
B
Active extra-occular muscles when looking downward
and left
a. (L) superior rectus and ® inferior oblique
b. (L) inferior rectus and ® superior oblique
.c (L) inferior oblique and ®superior rectus
d. (L) superior oblique and ® inferior rectus
B
A patient has diplopia when looking to the right. What nerve is affected?
a. ® CN 4
b.(L) CN 4
C. ® CN 6
d. (L) CN 6
e. NOTA
C
Stimulation of the vagus nerve may be expected to
result in:
a. Decreased blood pressure and increased cardiac contractili
b. Vasoconstriction and bradycardia
c. Vasodilation and tachycardia
d. Vasoconstriction and increased heart rate
e. Decreased BP and bradycardia
A
Injury to the facial nerve at the Brainstem will result in:
I. Impaired lacrimation
Ii. Hyperacusis
IlI. Loss of taste on anterior 2/3 of tongue palsy
IV. facial
A. All of these
B.i, ii, iii
C. I, iii
D. Ii, iv
E. None of these
A
If the motor root of the trigeminal nerve is injured,
paralysis occurs in:
I. Mylohyoid
I. tensor tympani
Il. Anterior belly of digastric muscles
IV. Pterygoids
a. All of these
b. None of these
с. І, ІІ, ІІІ
d. I and III
e. Il a n d IV
A
The following statements apply to the 7th cranial nerve, EXCEPT:
a. Innervates the musculature of the face and the posterior belly of digastric
b. The platysma is tested by pulling down the corners of the subjects mouth
c. Minor degrees of unilateral weakness are often best seen at rest or during expressional changes during conversation and in blinking
d. This nerves via its division called the chorda tympani conveys the taste from the anterior tongue
e. None of these
E
A32-year-old woman has hoarseness in her voice, and
her uvula is deviated to the right on phonation. Which
of the following nerve is damaged?
a. Right trigeminal nerve
b. Left trigeminal nerve
C. Right vagus nerve
d. Left vagus nerve
e. Left glossopharyngeal nerve
C
A pharyngeal (gag) reflex is the contraction of the pharyngeal constrictor muscles that is elicited by touching the back of the patient’s pharynx. Afferent nerve fibers that innervated the pharyngeal mucosa are branches of which of the following nerves?
a. Trigeminal nerve
b. Facial nerve
c. Glossopharyngeal nerve
d. Vagus nerve
e. Hypoglossal nerve
C
