Chapter 1

Question 1

internal molecular messengers

Answer 1

hormones

Question 2

male sex hormones

Answer 2

androgen

Question 3

ovulation

Answer 3

the release of an egg from ovary, every 28 days

Question 4

exocrine glands

Answer 4

secrete substances into ducts that empty into body cavities ex. sweat, oil

Question 5

endocrine glands

Answer 5

secrete hormones

Question 6

paracrines

Answer 6

chemical messengers produced by endocrine cells

- not carried by bloodstreams

Question 7

test used by early endocrinologists

Answer 7

1) remove gland
2) observe the effects of gland removal on the body
3) replacement therapy
4) observe to see if the replacement therapy reverses the effect of gland removal

Question 8

bioassay

Answer 8

indirectly measure the amount of a given hormones in glandular tissue or blood

Question 9

radioimunoassay

Answer 9

measure blood levels of hormones

Question 10

gas chromatography with mass spectrometry

Answer 10

measure mixed steroids in plasma or urine samples

Question 11

amines

Answer 11

single amino acid

- chemically altered

Question 12

steroid hormones

Answer 12

molecules derived from cholesterol

Question 13

female sex hormones

Answer 13

estrogen and progestins

Question 14

androgens

Answer 14

promote development of male reproductive structures

Question 15

estrogens

Answer 15

stimulates the maturation and function of the female reproductive structures

Question 16

progestogens

Answer 16

substances that cause the uterus to be secretory

Question 17

ligand

Answer 17

a molecule that binds to a receptor