exam 4 hormones

Question 1

antimullerian hormone

Answer 1

produced by sertoli cells, stops formation of mullerian duct in males (male reproductive)

Question 2

Testosterone (T)

Answer 2

produced by leydig cells from cholesterol, stimulates mesonephric duct, present from conception to 4.5 month fetus, then not until puberty (male repro)

Question 3

Dihydrotestosterone (DHT)

Answer 3

produced by leydig cells from cholesterol, works with T to aid formation of external genetalia present from conception to 4.5-month fetus, then not until puberty

Question 4

Estradiol

Answer 4

produced by leydig cells from cholesterol, works with T to program brain (hypothalamus) for gonad function present from conception to 4.5-month fetus, then not until puberty

Question 5

Antidiuretic hormone (ADH)/vasopressin

Answer 5

made by the hypothalamus supraoptic nerve, causes the kidney to conserve more water for blood and vasoconstriction. increased sodium leads to ADH released, which causes an increase in water intake and therefore sodium decreases

Question 6

Oxytocin

Answer 6

made by the hypothalamus, periventricular nucleus, stimulates lacatation in mammary glands, stimulated by suckling

Question 7

Releasing factor

Answer 7

made by hypothalamus stimulates the release of trophic hormones (secreted by the adenohypophysis) in the pars distalis stimulated by low concentrations of target cell products/hormones

Question 8

Inhibiting factor

Answer 8

made by the hypothalamus stimulates the release of trophic hormones (secreted by the adenohypophysis) in the pars distalis stimulated by high concentrations of target cell products/hormones

Question 9

Prolactin

Answer 9

trophic hormone made in lactotrophic cells (acidophilic) in the pars distalis, mammary gland development and lactation in females and T production in males

Low testosterone leads to increased releasing factor, which leads to an increase in prolactin and therefore an increase in testosterone

Question 10

growth factor

Answer 10

trophic hormone made in somatrophic cells (adidophilic) in the pars distalis stimulates growth in long bones

Question 11

Lutenising Hormone (LH)

Answer 11

trophic hormone made in gonadotrophic cells (basophilic) in the pars distalis stimulates ovulation in females and testosterone production in males

Question 12

Follicle-stimulating hormone (FSH)

Answer 12

trophic hormone made in gonadotrophic cells (basophilic) in the pars distalis stimulates ovulation in females and germ cell division in males

Question 13

thyroid stimulating hormone (TSH)

Answer 13

trophic hormone made in the thyrotrophic cells (basophilic) in the pars distalis, stimulates T3 and T4 production in the thyroid

Question 14

Andrenocorticotrophic hormone (ACTH)

Answer 14

trophic hormone made in the adrenocorticotrophic cells (basophilic) in the pars distalis. stimulates synthesis of glucocorticords in adrenal gland zona fasiculata, affecting glucose metabolism

Question 15

Melanocyte-stimulating hormone (MSH)

Answer 15

hormone made in the pars intermedia. questionable function