ch 18 endocrine

Question 1

endocrine glands

Answer 1

secrete their hormones directly into the bloodstream

Question 2

exocrine glands

Answer 2

send chemical substances (tears, sweat, milk, saliva) via ducts to the outside of the body

Question 3

two hormones by the thyroid functions

Answer 3

thyroxine or tetraiodothyronine (T4). And Triiodothyronine (T3)

Question 4

calcitonin (thyroid hormone)

Answer 4

stimulates calcium to leave the blood and enter the bone

Question 5

function of T3 and T4

Answer 5

increases metabolism

Question 6

function of calcitonin

Answer 6

decreases blood calcium

Question 7

function of parathyroid hormone (PTH)

Answer 7

causes calcium to mobilize from bones into the bloodtream

Question 8

adrenal gland two parts

Answer 8

outer portion called the adrenal cortex and a inner portion called he adrenal medulla

Question 9

function of the outer portion,

Answer 9

secretes corticosteroids or steroids, chemicals derived from cholestrol

Question 10

function of inner portion

Answer 10

secretes catecholamins chemicals derived from amino acids

Question 11

adrenal cortex secretes

Answer 11

glucocorticoids, mineralocorticoids, and sex hormones

Question 12

glucocorticoids

Answer 12

influence metabolism of sugars, fats, and proteins (cortisol) and are anti-inflammatory (cortisone). Influences—SUGAR

Question 13

Mineralocorticoids

Answer 13

regulate electrolytes

Question 14

Aldosterone

Answer 14

reabsorption of sodium/excretion of potassium. Influences—SALT

Question 15

Sex Hormones:

Answer 15

androgens (testosterone) and estrogens influence secondary sex characteristics

Question 16

medulla secretes (two catecholamine hormones)

Answer 16

epinephrine (adrenaline), norepinephrine (noradrealine)

Question 17

function of epinephrine

Answer 17

increases heart rate and blood pressure, dilates bronchial tubes, releases glucose from storage

Question 18

function of norepinephrine

Answer 18

constricts vessels to rise blood pressure

Question 19

both Epinephrine and Norepinephrine are _____ agents

Answer 19

sympathomimetic