Question

The peripheral nervous system transmits messages to and from the sense organs and is responsible for
A) Involuntary actions
B) Reflex actions
C) Autonomic actions
D) Voluntary actions

Answer 1

Peripheral nervous system divides into somatic system and autonomic system. Autonomic system maintains digestion, blood pressure etc. Somatic systems transfer information to the CNS from receptor cells in the sense organs.

Complete answer:
- A complex system in animals is the Nervous System. In the coordination of voluntary and involuntary acts, reflex behaviour of our body, this mechanism works. Nerve cells (neurons) make up the nervous system. They send signals by neurons in the form of electrical impulses and relay them to our sensory organs.
- The central nervous system (CNS) and the peripheral nervous system (PNS) are the two parts of the nervous system.
- The brain and spinal cord are part of the central nervous system, while all the nerves that extend out from the brain and spinal cord and spread to other areas of the body, including muscles and organs, are the part of the peripheral nervous system.
- In transforming information across the body, each part of the system plays a crucial role. There are two branches of the peripheral nervous system and they are the somatic nervous system and the autonomic nervous system.

Now, let us find the solution from the options-
Involuntary acts like heartbeat, metabolism, respiration, and blood pressure are regulated by the autonomic nervous system. Thus, the autonomic system governs involuntary actions.
Sensory nerves carry on signals to and from the sense organs. The somatic system controls voluntary actions.

Thus, the correct answer is option (A) and (D).

Note: A large system of nerves that are attached to the brain and spinal cord comprises the peripheral nervous system. It is made up of sensory receptors that detect internal and external stimulation changes and relay the information to the CNS.