What is the primary function of nerve cells?

What is the primary function of nerve cells?

• A. Central and peripheral nervous system
• B. Produce hormones
• C. Digest food
• D. Pump blood

Answer: (A)

Nerve cells, or neurons, are the signaling units of the body. They transmit electrical impulses and connect the senses, brain, and muscles to enable rapid communication and coordinated responses. Their primary function is to form and operate the nervous system, which includes the central nervous system (brain and spinal cord) and the peripheral nervous system (nerves throughout the body). This network is what allows you to sense, think, move, and react. The best choice reflects this role by pointing to the central and peripheral nervous systems as the structure built by nerve cells. The other options pertain to other body systems: producing hormones relates to the endocrine system, digesting food to the digestive system, and pumping blood to the circulatory system.

Nerve cells, or neurons, are the signaling units of the body. They transmit electrical impulses and connect the senses, brain, and muscles to enable rapid communication and coordinated responses. Their primary function is to form and operate the nervous system, which includes the central nervous system (brain and spinal cord) and the peripheral nervous system (nerves throughout the body). This network is what allows you to sense, think, move, and react.

The best choice reflects this role by pointing to the central and peripheral nervous systems as the structure built by nerve cells. The other options pertain to other body systems: producing hormones relates to the endocrine system, digesting food to the digestive system, and pumping blood to the circulatory system.