Biology - Coordination and response

homeostasis

homeostasis is the regulation of the internal conditions of a cell or organism to maintain optimum conditions for functions in response t internal and external changes

what do receptors do

receptors detect changes in the environment and pass messages to coordination centres through sensory neurons

what receptors detect pressure

mechanoreceptors

which receptors detect light

photoreceptors

which receptors detect chemicals

chemoreceptors

which receptors detect temperature

thermoreceptors

what does the central nervous system contain of

Brain and Spinal Chord

mainly of relay neurons

what does the peripheral nervous system consist of

sensory neurons

motor neurons

What is the Endocrine system

Endocrine system is made up of glands and hormones

Pituitary Glands

Pancreas

how do coordination centres work

coordination centres receive impulses from receptors through relay neurons.

The process the information using relay neurons

what are effectors

effectors are the muscles and glands that reduce the response that restore optimum levels

main glands in the body

Thyroid, Pituitary, Adrenal, Pancreas, Ovary, Testes

what do glands do

release hormones to make changes in conditions

what is a stimulus

Stimulus is the change in internal and external conditions that the body needs to respond to

Stimuli cells are detected by receptor cells

What is the nervous system

the nervous system allows organisms to quickly detect changes in the environment and coordinate their response to the world around them