T5 B2 homeostasis and responses

Subdecks (9)

Negative feedback is a mechanism in homeostasis that works to maintain a stable internal environment by reversing any deviations from the set point.
what is homeostasis  
regulation of a constant internal environment
why is homeostasis needed
is needed for enzymes and cells to function
what does homeostasis control in the human body
blood glucose concentration, body temperature, water levels
what are the 2 automatic control system
nervous system and hormonal communication
what do all control system have
receptors, coordination centres and effector
what do receptors do
receptors are cells that detect stimuli
what is a stimuli  
changes in the environment
what do coordination centres do
process the information received from the receptor
what do effectors do
brings about responses to bring the conditions in the body back to optimum levels
give examples of coordination centres
brain, spinal cord, pancreas
give examples of effectors
muscles and glands
what does the body use to bring back to normal when e.g water of glucose gets to high or too low
your body uses negative feedback to bring you back to normal
why do the internal conditions of your body need to be regulated
to maintain the right conditions for cells to function properly and for enzyme action
name the component of a control system that detects stimuli
receptor cell