Topic 5- Temp Control And Hornones Flashcards
How does the body respond when the body temperature is too high?
Vasodilation and sweating
How does vasodilation help cool down the body?
Blood vessels dilate so blood flows closer to the surface of the skin, allowing more heat to be lost to the surroundings
How does sweating help cool down the body?
Sweat evaporates, producing a cooling effect
How does the body respond if the temperature is too low?
Vasoconstriction, sweating, stops, shivering, hairs stand on end
How old does vasoconstriction help warm the body?
Blood vessels constrict so less heat can be lost to the surroundings
How does shivering help warm the body?
Muscles rapidly contracted to generate heat from respiration
How do hair standing on end help to warm the body?
Create an insulating layer to trap warm air
What hormones does the pancreas produce?
Insulin and glucagon
What hormone does the thyroid produce?
Thyroxine
What hormone does the adrenal gland produce?
Adrenaline
What hormone does the ovaries produce?
Estrogen
What hormone do testes produce?
Testosterone
How are hormones transported in the body?
Through the bloodstream
What does the pancreas produce when blood glucose is too high?
Insulin
What effect is the production of insulin have on the liver?
Causes the liver to take it glucose and turn it into glycogen (which is stored in the liver)