Coordination is defined as the working together of various organs of the body of an organism in a proper manner to produce appropriate reaction to a stimulus is called coordination. Coordination is achieved by different mechanisms in plants and humans.
Coordination in humans:
In humans coordination is achieved by two systems-
Nervous system
Endocrine system
The human nervous system is comprised of two parts- Central neural system (CNS) and Peripheral neural system (PNS).
The CNS is composed of brain and spinal cord.
The PNS is composed of nerves associated with CNS. These nerves are of two types- afferent and efferent.
Afferent fibres: Transmit impulses from tissues to CNS
Efferent fibres: Transmit impulses from CNS to tissues
Chemical coordination in humans is achieved by hormones. Hormones are the organic chemicals produced by the body, which are released into the blood. The key feature of the hormones is that they are secreted by ductless glands. Hormones are released directly into the blood stream and reach the target organ. The endocrine system works in association with nervous system to control and coordinate within our bodies.