Biology

HideShow resource information
How do the pupils get smaller and why?
Circular muscles contract and radial muscles relax so the retina is not damaged by bright light
1 of 13
How is body temperature controlled by vasoconstriction?
Arterioles get narrower, blood flow in skin capillaries decreases and heat loss from skin is reduced
2 of 13
Where is the thermoregulatory center?
Hypothalamus
3 of 13
How is body temperature controlled by vasodilation?
Blood vessels supplying capillary loops dilate so more blood flows near skin surface and heat is radiated away
4 of 13
What is body temperature?
37oC
5 of 13
What is ADH and what does it do?
Anti-diuretic hormone-> makes collecting duct more permeable to water so more is reabsorbed and less lost in urine
6 of 13
What is accommodation?
changes that take place to allow us to see objects at different distances
7 of 13
What is the amount of light entering the eye controlled by?
size of pupil changes due to muscles in the iris
8 of 13
What do effectors do?
Produce a response to a detected stimulus
9 of 13
What is the reflex arc?
Stimulus, receptor, sensory neurone, relay neurone, motor neurone, effector, response
10 of 13
What is another term for nerve cells?
Neuone
11 of 13
What is the CNS and what does it stand for?
Central Nervous System, brain and spinal cord
12 of 13
What do receptors do?
Detect a stimulus
13 of 13

Other cards in this set

Card 2

Front

How is body temperature controlled by vasoconstriction?

Back

Arterioles get narrower, blood flow in skin capillaries decreases and heat loss from skin is reduced

Card 3

Front

Where is the thermoregulatory center?

Back

Preview of the front of card 3

Card 4

Front

How is body temperature controlled by vasodilation?

Back

Preview of the front of card 4

Card 5

Front

What is body temperature?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Nervous system, hormones and behaviour resources »