22🏖🧚‍♂️The Endocrine System AK🏖🧚‍♂️

50) The pituitary hormone that controls the release of glucocorticoids from the suprarenal cortex is A) TSH. B) ACTH. C) FSH. D) LH. E) GH.

B) ACTH.

34) Changes in blood osmotic pressure would most affect the secretion of A) ACTH. B) ADH. C) oxytocin. D) TSH. E) LH

B) ADH.

32) The primary function of ADH is to A) increase the amount of sodium lost at the kidneys. B) decrease the amount of water lost at the kidneys. C) decrease blood pressure. D) increase digestive absorption. E) delay urination

B) decrease the amount of water lost at the kidneys.

29) If the adenyl cyclase activity of liver cells were missing, which of these hormones could no longer stimulate release of glucose? A) growth hormone B) glucagon C) cortisol D) thyroxine E) leptin

B) glucagon

45) Each of the following hormones is produced by the pars distalis of the adenohypophysis except A) FSH. B) oxytocin. C) TSH. D) corticotropin. E) somatotropin.

B) oxytocin.

51) The pituitary hormone that promotes egg development in ovaries and sperm development in testes is A) TSH. B) ACTH. C) FSH. D) LH. E) GH.

C) FSH.

40) Excess secretion of growth hormone during early development will cause A) dwarfism. B) rickets. C) gigantism. D) acromegaly. E) diabetes insipidus

C) gigantism.

35) The hypothalamus controls secretion in the adenohypophysis by A) direct neural stimulation. B) indirect osmotic control. C) secreting releasing and inhibiting factors into a tiny portal system. D) altering ion concentrations and pH in the anterior pituitary. E) gap synaptic junctions.

C) secreting releasing and inhibiting factors into a tiny portal system

47) Growth hormone does all of the following except A) promote bone growth. B) promote muscle growth. C) speed up metabolism. D) spare glucose. E) promote amino acid uptake by cells.

C) speed up metabolism.

43) The posterior pituitary gland secretes A) FSH. B) TSH. C) ACTH. D) ADH. E) MSH.

D) ADH.

52) The pituitary hormone that promotes ovarian secretion of progesterone and testicular secretion of testosterone is A) TSH. B) ACTH. C) FSH. D) LH. E) GH.

D) LH.

44) The hormone produced by the pars intermedia of the adenohypophysis during early childhood is A) FSH. B) ADH. C) TSH. D) MSH. E) ACTH.

D) MSH.

24) After a steroid hormone binds to its receptor to form an active complex, A) adenyl cyclase is activated. B) cyclic nucleotides are formed. C) G proteins are phosphylated. D) gene transcription is initiated. E) protein kinases are activated

D) gene transcription is initiated.

25) The most complex endocrine responses involve the A) thyroid gland. B) pancreas. C) suprarenal glands. D) hypothalamus. E) thymus gland

D) hypothalamus.

48) Liver cells respond to growth hormone by releasing hormones called A) gonadotrophins. B) prostaglandins. C) hepatic hormones. D) somatomedins. E) glucocorticoids

D) somatomedins.

49) The pituitary hormone that triggers the release of thyroid hormone from the thyroid gland is A) TSH. B) ACTH. C) FSH. D) LH. E) GH.

A) TSH.

28) All target cells A) have hormone receptors. B) respond to electrical signals. C) secrete hormones. D) produce their own hormones. E) are in the blood.

A) have hormone receptors.

39) The main action of antidiuretic hormone is A) increased water conservation by kidneys. B) to stimulate kidney cells to secrete renin. C) increase urine output to remove excess fluid. D) increased blood pressure by increased Na+ reabsorption. E) inhibition of aldosterone

A) increased water conservation by kidneys.

33) If the hypophyseal portal system is destroyed, the hypothalamus would no longer be able to control the secretion of which of the following hormones? A) TSH B) ACTH C) PRL D) ADH and OXT E) TSH, ACTH, PRL

E) TSH, ACTH, PRL

27) Which of the following hormones is/are water soluble and therefore bind(s) to extracellular receptors? A) insulin B) epinephrine C) cortisol D) calcitriol E) insulin and epinephrine

E) insulin and epinephrine

53) The pituitary hormone that stimulates milk production by the mammary glands is A) TSH. B) ACTH. C) growth hormone. D) FSH. E) prolactin.

E) prolactin.

55) The pituitary hormone that causes the kidney to reduce water loss is A) TSH. B) FSH. C) MSH. D) STH. E) ADH.

E) ADH.

26) Hormone release may be controlled by which of the following factors? A) blood level of an ion like calcium B) blood level of glucose C) blood level of a hormone D) nervous stimuli E) All of the answers are correct

E) All of the answers are correct

37) Secretory cells of the adenohypophysis release A) FSH. B) TSH. C) ACTH. D) GH. E) All of the answers are correct

E) All of the answers are correct

42) Which of the following organs contain target cells for oxytocin? A) prostate B) ductus deferens C) mammary glands D) uterus E) All of the answers are correct

E) All of the answers are correct

46) The hormone oxytocin A) promotes uterine contractions. B) is responsible for milk expression from the mammary glands. C) triggers prostate gland contraction. D) is produced in the hypothalamus. E) All of the answers are correct

E) All of the answers are correct

38) The hypophyseal portal system A) is a blood connection between the hypothalamus to the anterior pituitary. B) has two capillary plexuses connected by short veins. C) carries neurosecretions to the anterior lobe of the pituitary. D) carries ADH and oxytocin. E) All of the answers are correct.

E) All of the answers are correct.