ch. 7 part 7 hormones

Question 1

What are hormones?

Answer 1

Chemical messengers that release from one cell into the blood

Question 2

What are growth hormones?

Answer 2

Both directly stimulate growth of cartilage in epiphyseal plate

Question 3

What are thyroid hormones?

Answer 3

Regulates normal activity at epiphyseal plate

Question 4

What are sex hormones?

Answer 4

Triggered at puberty; increases rate of cartilage growth and bone formation in epiphyseal plate

Question 5

What are glucocorticoids?

Answer 5

Regulate blood glucose level and high amounts increase bone loss

Question 6

What is serotonin?

Answer 6

Role in rate and regulation of normal bone remodeling

Question 7

What happens if serotonin levels are too high?

Answer 7

Osteoprogenitor cells are prevented from differentiating into osteoblasts

Question 8

What are the two primary hormones regulating blood calcium?

Answer 8

Calcitriol and parathyroid hormone

Question 9

PTH and calcitriol interact with bone

Answer 9

Act synergistically to increase release of calcium from the bone into the blood by increasing osteoclast activity

Question 10

What is calcitonin?

Answer 10

Aids in regulating blood calcium levels; inhibits osteoclast activity