Hormones in Animal Reproduction

Question 1

Hormones

Answer 1

substances released from one cell to regulate another cell, as a chemical messenger

Question 2

FSH

Answer 2

Stimulates ovarian follicles to grow

Question 3

LH

Answer 3

promotes follicle development

Question 4

Hypothalamic hormones

Answer 4

GnRH

Question 5

Pituitary Hormones

Answer 5

FSH, LH, Prolactin, Oxytocin

Question 6

Gonad (ovary) Hormones

Answer 6

estradiol, progesterone, inhibin, testosterone, relaxin

Question 7

Gonad (testes) Hormones

Answer 7

testosterone, inhibin, estradiol

Question 8

Uterine Hormones

Answer 8

Prostaglandin F2alpha

Question 9

Placenta Hormones

Answer 9

Progesterone, estradiol, hCG, eCG, oxytocin, PGF2alpha

Question 10

Prostaglandin causes the corpus luteum to..

Answer 10

regress

Question 11

If an embryo forms, what happens to postaglandin secretion?

Answer 11

The embryo prevents prostaglandin secretion

Question 12

Protein hormones activate other proteins via

Answer 12

phosphorylation

Question 13

The strength of hormone action depends on:

Answer 13

pattern and duration of secretion
half-life
receptor density
affinity receptor- hormone

Question 14

episodic hormonal secretion pattern

Answer 14

nerves f the hypothalamus fire, neuropeptides are released in a sudden burst or pulse

Question 15

Basal hormonal secretion pattern

Answer 15

The hormone stays low, but fluctuates with low amplitude pulses

Question 16

Sustained hormonal secretion pattern

Answer 16

The hormone remains elevated but a relatively steady fashion for a long period (steriods)

Question 17

agonist hormones

Answer 17

two hormones bind to the same specific receptor and have the same biological response

Question 18

antagonist hormones

Answer 18

two hormones bind ot the same specific receptor, but have weak or no biological effect