Section 6 Coordination And Response Flashcards
1
Q
What is the difference between receptors and effectors
A
Receptors detect stimuli
Effectors produce a response
2
Q
What makes up the nervous system
A
Spinal chord Brain Sensory neurone Relay neurone Motor neurone
3
Q
How do neurones work
A
They transmit high speed electrical impulses which produces very rapid responses
4
Q
Recall the reflex arc
A
Stimulus -> receptor ->
sensory neurone -> relay neurone -> motor neurone -> effector -> response
5
Q
What is the definition of homeostasis
A
Homeostasis is the maintenance of a constant internal environment.
6
Q
What is vasodilation and vasoconstriction?
A
Vasodilation is when the blood vessels close to the skin widen to allow more blood to flow near the surface to cool down.
Vasoconstriction is when blood vessels near the surface of the skin stop blood flowing near the surface
