Membranous labyrinth of the inner ear is surrounded by:
1. Perilymph | 2. Endolymph |
3. Hemolymph | 4. Air |
The space between the cornea and the lens in human eye is filled with:
1. Aqueous humor | 2. Vitreous humor |
3. Lymph | 4. Air |
The ear ossicles transmit sound waves to:
1. Ear drum | 2. Oval window |
3. Round window | 4. Cochlear duct |
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
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 |
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 |
What causes the movement of the synaptic vesicles towards the membrane during transmission of impulse across a chemical synapse?
1. Sodium | 2. Calcium |
3. cAMP | 4. cGMP |
Reissner’s membrane in the inner ear separates the cochlear duct [scala media] from the:
1. round window | 2. scale vestibuli |
3. scala tympani | 4. basilar membrane |
Crista ampullaris is found in:
1. Semi-circular canals | 2. Utricle |
3. Saccule | 4. Cochlea |
Myelin sheath around the axons in the PNS is secreted by:
1. oligodendrocytes | 2. axons |
3. Schwann cells | 4. ependymal |