Column I | Column II |
A. Peripheral neural system | P. Comprises of all nerves associated with brain and spinal cord |
B. Somatic neural system | Q. Relays impulses from CNS to skeletal muscles |
C. Visceral neural system | R. Transmits impulse from CNS to involuntary organs and smooth muscles |
D. Autonomic neural system | S. Part of PNS where impulses travel from CNS to the viscera and from the viscera to the CNS |
A | B | C | D | |
1. | P | Q | R | S |
2. | Q | R | S | P |
3. | R | S | P | Q |
4. | S | P | Q | R |
1. CNS | 2. Somatic neural system |
3. Autonomic neural system | 4. Visceral neural system |
Consider the following statements:
I: | Impulses travel by the visceral nervous system from the CNS to the viscera and from the viscera to the CNS. |
II: | Impulses travel by the autonomic nervous system from the CNS to the involuntary organs and smooth muscles of the body. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Assertion(A): | The nervous system is the master control system of the body, responsible for coordinating all its activities. |
Reason(R): | The nervous system is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
1. | The central nervous system includes the brain and the spinal cord. |
2. | The peripheral nervous system comprises of all the nerves of the body associated with the central nervous system. |
3. | The afferent nerve fibers transmit regulatory impulses from the central nervous system to the concerned peripheral tissues or organs. |
4. | The peripheral nervous system is divided into two divisions called somatic neural system and autonomic neural system |
I: | Afferent nerve fibres transmit impulses from tissues/organs to the central nervous system (CNS) |
II: | Efferent fibres transmit regulatory impulses from the CNS to the concerned peripheral tissues/organs |
1. | Only I is correct | 2. | Only II is correct |
3. | Both I and II are correct | 4. | Both I and II are incorrect |
1. | cranial nerve | 2. | ganglion |
3. | spinal cord | 4. | spinal nerve |
I. Cell body | II. Dendrites | III. Axon |
1. I and II only | 2. I and III only |
3. II and III only | 4. I, II and III |
Column I | Column II | ||
A. | Multipolar neuron | P. | Embryonic stage |
B. | Bipolar neuron | Q. | Retina |
C. | Unipolar neuron | R. | Cerebral cortex |
A | B | C | |
1. | P | Q | R |
2. | Q | R | P |
3. | R | Q | P |
4. | R | P | Q |
Myelin sheath around the axons in the PNS is secreted by:
1. oligodendrocytes | 2. axons |
3. Schwann cells | 4. ependymal |