91. Destruction of the lower cervical and upper thoracic ventral roots on the left side leads to–
1. dilated right pupil
2. constricted right pupil
3. dilated left pupil
4. constricted left pupil
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is D.
92. The corticospinal tract passes through–
1. the internal capsule
2. the crus cerebri
3. the pyramids of the medulla
4. the lateral and anterior columns of the spinal cord
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is E.
93. The extrastriate cortex–
1. is Brodmann's areas 18 and 19
2. receives input from area 17
3. is the visual association cortex
4. is the primary auditory cortex
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is A.
94. The Klüver-Bucy syndrome–
1. is characterized by hyperorality and hypersexuality
2. is characterized by psychic blindness and personality changes
3. is seen in patients with bilateral temporal lobe lesions
4. is seen in patients with lesions of the anterior thalamus
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is A.
95. Pain sensation–
1. is carried in large myelinated (A-alpha) axons
2. is carried by small myelinated and unmyelinated (A-delta and C) axons
3. is carried upward in the dorsal columns of the spinal cord
4. is carried upward in the spinothalamic tract and spinoreticulothalamic system
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is C.
96. The cerebrum consists of the–
A. thalamus and basal ganglia
B. telencephalon and midbrain
C. telencephalon and diencephalon
D. brain stem and prosencephalon
E. cerebellum and prosencephalon
The answer is C
97. A 68-year-old teacher with hypertension complained of a severe headache and was taken to the hospital. Examination revealed that he could write normally but could not read. His speech was normal. The lesion(s) most likely involved the–
1. corpus callosum
2. Broca's area
3. left visual cortex
4. left angular gyrus
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is B.
98. A 68-year-old teacher with hypertension complained of a severe headache and was taken to the hospital. Examination revealed that he could write normally but could not read. His speech was normal. The lesion(s) most likely involved the corpus callosum and left visual cortex and–
1. the left anterior cerebral artery was probably involved
2. there was probably a right homonymous hemianopia
3. the left middle cerebral artery was probably involved
4. the left posterior cerebral artery was probably involved
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is C.
99. A 54-year-old accountant, who worked until the day of his illness, was found on the floor, with a right hemiparesis (arm and face more severely affected than the leg) and severe aphasia.
The diagnosis is most likely–
A. a tumor involving the thalamus on the left
B. a large tumor of the left cerebral hemisphere
C. a stroke involving the right middle cerebral territory
D. a stroke involving the right anterior cerebral territory
E. a stroke involving the left middle cerebral territory
F. a stroke involving the left anterior cerebral territory
The answer is E.
100. The homunculus in the motor cortex–
1. contains magnified representations of the face and hand
2. represents the face highest on the convexity of the hemisphere
3. is located largely within the territory of the middle cerebral artery
4. gives rise to all of the axons that descend as the corticospinal tract
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is B.
101. The optic chiasm–
1. is located close to the pineal and is often compressed by pineal tumors
2. is located close to the pituitary and is often compressed by pituitary tumors
3. contains decussating axons that arise in the temporal halves of the retinas
4. contains decussating axons that arise in the nasal halves of the retinas
In the following question, select the single best answer.
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is C.
More Questions & Answers:-
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1. dilated right pupil
2. constricted right pupil
3. dilated left pupil
4. constricted left pupil
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is D.
92. The corticospinal tract passes through–
1. the internal capsule
2. the crus cerebri
3. the pyramids of the medulla
4. the lateral and anterior columns of the spinal cord
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is E.
93. The extrastriate cortex–
1. is Brodmann's areas 18 and 19
2. receives input from area 17
3. is the visual association cortex
4. is the primary auditory cortex
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is A.
94. The Klüver-Bucy syndrome–
1. is characterized by hyperorality and hypersexuality
2. is characterized by psychic blindness and personality changes
3. is seen in patients with bilateral temporal lobe lesions
4. is seen in patients with lesions of the anterior thalamus
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is A.
95. Pain sensation–
1. is carried in large myelinated (A-alpha) axons
2. is carried by small myelinated and unmyelinated (A-delta and C) axons
3. is carried upward in the dorsal columns of the spinal cord
4. is carried upward in the spinothalamic tract and spinoreticulothalamic system
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is C.
96. The cerebrum consists of the–
A. thalamus and basal ganglia
B. telencephalon and midbrain
C. telencephalon and diencephalon
D. brain stem and prosencephalon
E. cerebellum and prosencephalon
The answer is C
97. A 68-year-old teacher with hypertension complained of a severe headache and was taken to the hospital. Examination revealed that he could write normally but could not read. His speech was normal. The lesion(s) most likely involved the–
1. corpus callosum
2. Broca's area
3. left visual cortex
4. left angular gyrus
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is B.
98. A 68-year-old teacher with hypertension complained of a severe headache and was taken to the hospital. Examination revealed that he could write normally but could not read. His speech was normal. The lesion(s) most likely involved the corpus callosum and left visual cortex and–
1. the left anterior cerebral artery was probably involved
2. there was probably a right homonymous hemianopia
3. the left middle cerebral artery was probably involved
4. the left posterior cerebral artery was probably involved
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is C.
99. A 54-year-old accountant, who worked until the day of his illness, was found on the floor, with a right hemiparesis (arm and face more severely affected than the leg) and severe aphasia.
The diagnosis is most likely–
A. a tumor involving the thalamus on the left
B. a large tumor of the left cerebral hemisphere
C. a stroke involving the right middle cerebral territory
D. a stroke involving the right anterior cerebral territory
E. a stroke involving the left middle cerebral territory
F. a stroke involving the left anterior cerebral territory
The answer is E.
100. The homunculus in the motor cortex–
1. contains magnified representations of the face and hand
2. represents the face highest on the convexity of the hemisphere
3. is located largely within the territory of the middle cerebral artery
4. gives rise to all of the axons that descend as the corticospinal tract
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is B.
101. The optic chiasm–
1. is located close to the pineal and is often compressed by pineal tumors
2. is located close to the pituitary and is often compressed by pituitary tumors
3. contains decussating axons that arise in the temporal halves of the retinas
4. contains decussating axons that arise in the nasal halves of the retinas
In the following question, select the single best answer.
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is C.
More Questions & Answers:-
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