Q. No.The afferent neuron receives signal from a sensory organ and transmits the impulse to the CNS via:
1. Dorsal root of the spinal nerve
2. Ventral root of the spinal nerve
3. Cranial nerve
4. Intermediolateral horn of spinal cord grey mater
1. Dorsal root of the spinal nerve
2. Ventral root of the spinal nerve
3. Cranial nerve
4. Intermediolateral horn of spinal cord grey mater
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 |
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 |
© 2025 GoodEd Technologies Pvt. Ltd.