Lecture 15 Part 2

Question 1

Alpha islet cells produce

Answer 1

glucagon (glucose agonist)

Question 2

Mobilizes stored products (glycogen)=

Answer 2

elevates blood glucose levels

Question 3

Hypothalamus influences

Answer 3

pituitary activity

Question 4

Pituitary influences many body functions through

Answer 4

many hormones

Question 5

Vasopressin (antidiuretic hormone, ADH)- acts on smooth muscles of

Answer 5

arterioles to constrict; incr. blood press.

Question 6

Vasopressin- promotes water conserv. in kidneys-makes collecting duct permeable to..

Answer 6

water, reabsorbs water, conc. urine

Question 7

Too low of ADH levels: large vol. of dilute urine produced-

Answer 7

diabetes insipidus

Question 8

Oxytocin: hormone acts on smooth muscle of

Answer 8

uterus/cells of mammary glands

Question 9

Oxytocin: Late in pregnancy, oxyt. levels rise=causes uterine…

Answer 9

contrct./mamm. gland cells to secrete milk

Question 10

Growth hormone-affects

Answer 10

growth/metabolism

Question 11

Prolactin: In mamm.-affects dev. of

Answer 11

mamm. glands/lactation

Question 12

Prolactin: In birds-stimul. lipid synthesis(fatten up before migration) and stimul…

Answer 12

appearance of brood patch

Question 13

Thyrotropin (Thyroid Stimulating Hormone)-

Answer 13

stimulates thyroid

Question 14

Gonadotropins (Follicle Stimulating Hormone, FSH/Luteinizing Hormone, LH)

Answer 14

affects gonads/reproduct. tracts

Question 15

Corticotropin-

Answer 15

affects adrenal glands

Question 16

Melanophore Stimulating Hormone-

Answer 16

affects pigment cells of skin; protects from U/V

Question 17

(3) Gonads: produce hormones that support sec. sex characteristics-

Answer 17

Testosterone
Estrogens
Progestogens

Question 18

Endocr. Coordt: In marsupials- short gestation period, support three embryos at different devlpl. stages

Answer 18

Ovulation alter. betw. ovaries, embryonic diapause-delayed implant. of embryo

Question 19

Pineal Gland-affects perception of

Answer 19

photo radiation

Question 20

Pineal Gland- involved in detecting

Answer 20

seasonal or daily light schedules (circadian rhythms)

Question 21

(3) Hormone Control-

Answer 21

Functional/Structural Linkage, Target Tissue Responses, Environmental influences

Question 22

Environmental influences-

Answer 22

seasonal events (hibernation, migration, reproduction)

Question 23

Target Tissue Responses: cell receptors must recog. hormones- hormones only affect

Answer 23

certain target cells; diff. cells may have diff. responses

Question 24

Funct./Strct. Linkage: endcr./nervous systems are linked thru..

Answer 24

hypothalamus

Question 25

Funct./Strct. Linkage: bridge betw. systems-

Answer 25

neurosecretory neurons