Coordination And Response define Flashcards
Receptor
Receives/detects the stimulus
Give an example of a receptor
Temperature sensors in the skin
Effector
Carries out the response
Example of an effector
Biceps muscle
Synapse
Tiny gaps between nerve cells which allow transmitter chemicals to diffuse at a high enough concentration to trigger an impulse
Neurone
Specially adapted nerve cells to carry electrical impulses through the nervous system
Axon
A thread-like part of a nerve cell which carries impulses away from the cell body to other cells
Reflex
Unconscious actions which are faster than voluntary actions. They are used by the body as a means of protection
Homeostasis
Maintaining a constant internal environment for the proper functioning of cells and enzymes in response to internal and external change
Myelin sheath
The substance which surrounds the axon of some nerve cells and allows for rapid transmission of impulses
Hormone
Chemicals produced by special glands in the body that can travel through the blood to target organs in order to produce temporary changes in the way cells function
Insulin
A hormone which controls blood glucose level by acting to lower blood glucose concentration by converting glucose to glycogen in the liver and increases respiration rate to use up excess glucose
Glycogen
A carbohydrate which stores glucose
Diabetes
A condition where people fail to produce enough insulin or fail to respond to it correctly
Osmoregulation
The kidney’s homeostatic role in maintaining water balance in the body and the regulation of the concentration of blood
