General

Question 1

define hormone

Answer 1

organic chemical messengers that are secreted to maintain homeostasis

Question 2

define endocrine gland

Answer 2

ductless glands that secrete hormones into bloodstream to target organ to perform function

Question 3

define exocrine gland

Answer 3

glands that release secretions via ducts to outside or body cavity such as sweat glands or salivary glands

Question 4

what does hypothalamus secrete and function

Answer 4

adh more permeable renal tubule for water reabsorption

Question 5

what does hypophysis secrete and function

Answer 5

GH- growth of skeleton and muscle
TSH- stimulate thyroid to produce thyroxin
FSH/LH
prolactin- stimulate mammary glands to produce milk

Question 6

what does thyroid secrete and function

Answer 6

thyroxin- to increase heart rate and basal metabolic rate
growth and effective functioning

Question 7

what does islet of langerhaan secrete

Answer 7

Insulin/ glucagon

Question 8

what do gonads secrete

Answer 8

ovary progesterone and estrogen
testis- testosterone

Question 9

what does adrenal gland secrete and function

Answer 9

aldosterone for salt reabsorption in renal tubules
Adrenalin to prepare body for emergency (dialate pupil, increase heart rate, focus)

Question 10

homeostasis of thyroxin

Answer 10

thyroxin low, tsh by hypophysis to stimulate thyroid to secrete thyroxin, tsh inhibited when thyroxin higher

Question 11

what is goitre

Answer 11

lack of iodine in production of thyroxin and thyroid gland enlarges