Nervous Control in Humans 

Nervous control in humans involves the central nervous system (CNS), which comprises the brain and spinal cord, and the peripheral nervous system (PNS), consisting of nerves that extend from the CNS to all parts of the body.

The nervous system communicates through electrical impulses that travel along nerve cells called neurons. These impulses carry information from sensory receptors to the CNS for processing and from the CNS to effectors, such as muscles and glands, to produce responses.

When a sensory receptor detects a stimulus, such as touch or temperature, it sends an electrical signal along sensory neurons to the CNS. The CNS processes this information and sends a response signal along motor neurons to effectors.

Muscles and glands are effectors that respond to nervous signals. When a nerve impulse reaches a muscle, it triggers a series of events leading to muscle contraction. Glands, on the other hand, produce hormones in response to nervous signals, regulating various bodily functions.