The endocrine system regulates various bodily functions through the release of hormones, controlling processes such as metabolism, growth, and reproduction.

A hormone is a chemical messenger produced by glands that regulate specific physiological processes in the body, such as growth, metabolism, and mood.

The pituitary gland, known as the ‘master gland,’ regulates other endocrine glands and controls important functions such as growth, reproduction, and metabolism.

Tropism is the directional growth of a plant in response to an environmental stimulus, such as light (phototropism) or gravity (gravitropism).

The hypothalamus maintains homeostasis by regulating autonomic functions, controlling body temperature, hunger, thirst, and the release of hormones.

The human nervous system consists of the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS), which includes sensory and motor neurons. It functions to receive, process, and respond to stimuli, enabling coordination, control, and communication within the body.