Homestasis Loops (non-honors)

Metabolism, Long Term Stress, Fight or Flight Response, Blood Glucose Levels, Blood Calcium Levels

What hormone does the hypothalamus release in the metabolism loop?

TRH

What hormone does the Pituitary gland release in the metabolism loop

TSH

What gland is stimulated in the metabolism loop?

thyroid

What hormone does the thyroid gland release in the metabolism loop?

T

What hormone does the hypothalamus release in the long term stress loop?

CRH

What hormone does the pituitary gland release in the long term stress loop?

CSH

What gland is stimulated in the long term stress loop?

Adrenal Cortex

What hormone does the adrenal cortex release in the long term stress loop?

Cortisol

What stimulates the nervous system (brain stem) in the fight or flight response?

an acute stressor

What gland does the nervous system signal in the fight or flight response?

Adrenal medulla

What hormone does the adrenal medulla release in the fight or flight reponse?

adrenaline

What are some target organs in the fight or flight reponse?

heart (increases BPM), blood vessels (dilates so more blood reaches muscles), liver (releases glucose so you have more energy

What is the receptor when your blood glucose levels are to high?

Beta cells

What hormone do beta cells secrete?

Insulin (puts glucose and makes it INto glycogen)

What is the receptor when your blood glucose levels are to low?

Alpha cells

What hormone do alpha cells secrete?

Glucagon

What is the receptor when blood calcium levels are too high?

c cells in thyroid gland

What does the thyroid gland release when blood calcium levels are to high?

calcitonin

What do osteoblasts do when stimulated by calcitonin?

They deposit calcium into bones

What is the receptor when the blood calcium levels are to low?

parathyroid cells

What hormone does the parathyroid gland release when blood calcium levels are to low?

PTH

What do osteoclasts do when stimulated by PTH?

they break down bone to release calcium