into to homostasis Flashcards
what is homostasis
an organism’s ability to regulate and maintain a stable internal environment.
what does the feedback system include in order
receptors-control centre-effectors-feedback
what is the function of the receptor
the sense the change and alerts the control centre (e.g skin)
what is the function of the control centre
determines how to fix the change and sends signals to the effectors (e.g brain)
what is the function of the effectors
returns the body back to normal (e.g
what is the function of the feedback
normal signals are sent to the control centre to shut down the effectors
what is positive feedback
a process by which a small change is increased amplifies change (e.g labour)
what is negative feedback
a change from normal trigger mechanism that restores normal resist change (e.g high fever to kill viruses)
