chapter 16: endocrine system lab

Question 1

nervous system secretes:

Answer 1

neurotransmitters

Question 2

endocrine system secretes:

Answer 2

hormones

Question 3

functions of hypothalamus:

Answer 3

1) produces hormones that inhibits and releases hormones from the anterior pituitary
2) produces adh hormone and oxytocin

Question 4

hypothalamus is connected to which pituitary gland and how:

Answer 4

anterior pituitary gland via 2 capillaries connected by portal veins called hypothalamic-hypophyseal portal system

Question 5

endocrine organs part of diencephalon:

Answer 5

hypothalamus and pineal gland

Question 6

antagonist hormones:

Answer 6

1) blood calcium: parathyroid hormone vs calcitonin
2) blood glucose: insulin vs glucagon

Question 7

pineal gland secretes:

Answer 7

melatonin

Question 8

thyroid gland secretes:

Answer 8

1) thyroxine
2) triiodothyronine
3) calcitonin

Question 9

pancreas secretes:

Answer 9

insulin and glucagon

Question 10

thymus secretes:

Answer 10

thymosin and thymopoietin

Question 11

parathyroid glands secrete:

Answer 11

parathyroid hormone

Question 12

adrenal cortex secretes:

Answer 12

steroid hormones

Question 13

anterior pituitary secretes:

Answer 13

1) thyroid-stimulating hormone
2) growth hormone

Question 14

adrenal medulla secretes:

Answer 14

1) epinephrine
2) nonepinephrine

Question 15

thyroid gland consists of:

Answer 15

rings of cuboidal follicle cells surrounding colloid

Question 16

pancreas consists of:

Answer 16

1) acini: outer exocrine portion slightly cuboidal around a duct
2) islets: lighter in color endocrine portion secreting insulin and glucagon

Question 17

adrenal cortex consists of:

Answer 17

3 zonas of cells that secrete 3 different types of hormones

1) glomerulosa: aldosterone
2) fasciculata: cortisol
3) reticularis: glucocorticoids and adrogen

Question 18

adrenal medulla consists of:

Answer 18

modified nervous tissue of the sympathetic nervous system

Question 19

what is a feedback loop?

Answer 19

endocrine gland works to counter initial stimulus

Question 20

stimulus for glucagon secretion:

Answer 20

low blood glucose

Question 21

stimulus for calcitonin secretion:

Answer 21

high blood calcium

Question 22

stimulus for parathyroid hormone secretion:

Answer 22

low blood calcium

Question 23

stimulus for T4 & T3 secretion:

Answer 23

TSH

Question 24

stimulus for cortisol secretion:

Answer 24

ACTH

Question 25

stimulus for antidiuretic hormone secretion:

Answer 25

high blood concentration