Olfactory epithelium extends directly into which of the following extensions of the brain’s limbic system?
1. Amygdala | 2. Olfactory lobe |
3. Septum | 4. Hippocampus |
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Membranous labyrinth of the inner ear is surrounded by:
1. Perilymph | 2. Endolymph |
3. Hemolymph | 4. Air |
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The space between the cornea and the lens in human eye is filled with:
1. Aqueous humor | 2. Vitreous humor |
3. Lymph | 4. Air |
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The ear ossicles transmit sound waves to:
1. Ear drum | 2. Oval window |
3. Round window | 4. Cochlear duct |
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Consider the two statements:
I: | Electric synapses are rare in our system. |
II: | Impulse transmission across electric synapse is always faster than across a chemical synapse. |
1. Both I and II are correct and II explains I
2. Both I and II are correct and II does not explain I
3. Only I is correct
4. Only II is correct
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The primary commissural region of the brain consisting of white matter tracts that connects the left and right cerebral hemispheres is called as:
1. corpus striatum | 2. corpus luteum |
3. corpus callosum | 4. corpus spongiosum |
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The scala vestibuli and scala tympani contain perilymph and are connected at the:
1. cochlear duct | 2. helicotrema |
3. semicircular duct | 4. vestibule |
The cranial meninge that is in contact with the brain tissue is the:
1. Dura mater | 2. Arachanoid mater |
3. Pia mater | 4. Grey matter |
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Match each item in Column I [part of the brain] with one in Column II [function] and select the answer from the codes given below:
|
Column I |
|
Column II |
A. |
Medulla oblongata |
a. |
Motor control |
B. |
Pons varoli |
b. |
Hunger center |
C. |
Cerebellum |
c. |
Bridge between cerebellum and rest of brain |
D. |
Hypothalamus |
d. |
Gastric secretions, respiratory rhythm center |
Codes
A | B | C | D | |
1. | c | d | b | a |
2. | d | c | a | b |
3. | c | d | a | b |
4. | d | c | b | a |
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The change in electrical potential that occurs between the inside and outside of a nerve or muscle fiber when it is stimulated, serving to transmit nerve signals is called as:
1. Action potential
2. Threshold potential
3. Reversal potential
4. Excitatory post synaptic potential
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