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physiology problems > pretest 2002 endocrine p243-285 > Flashcards

pretest 2002 endocrine p243-285 Flashcards

0
Q

Parathyroid hormone (PTH) is accurately described that it is

A

essential for life

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1
Q

The supraoptic nucleus of the hypothalamus is believed to control secretion of

A

ADH

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2
Q

When a person is in the fasting state, basal metabolic rate (BMR)

A

decreases

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3
Q

True/False: Regarding atrial natriuretic hormone (ANH) is inhibits aldosterone secretion.

A

True

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4
Q

True/False: Regarding spermatogenesis, Sertoli cells are required for mitotic and meiotic activity of germ cells

A

True

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5
Q

The secretion of growth hormone is increased by

A

exercise

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6
Q

the source of estrogen and progesterone during the first two months of pregnancy is the

A

corpus luteum

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7
Q

the source of estrogen and progesterone during the last seven months of pregnancy is the

A

placenta

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8
Q

what hormones is secreted by the posterior pituitary gland?

A

Oxytocin and ADH

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9
Q

True/False: Regarding prolactin, its secretion is tonically inhibited by the hypothalamus

A

True

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10
Q

The principal steroid secreted by the fetal adrenal cortex is

A

Dehydroepiandrosterone

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11
Q

The effect of insulin on glucose transport is to

A

enhance transport into adipocytes

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12
Q

compared with the resting state, during prolonged exercise, the caloric needs of skeletal muscle are met by an increase in

A

hepatic glycogenolysis

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13
Q

Iodides are stored in the thyroid follicles mainly in the form of

A

thyroglobulin

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14
Q

Almost all of the active thyroid hormone entering the circulation is in the form of

A

thyroxine

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15
Q

Physiologically active thyroxine exists in what form?

A

Unbound

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16
Q

Ovulation is caused by sudden increase in the secretion of

A

LH

17
Q

Activation of hormone-sensitive lipase in adipocytes is mediated by

A

a cyclic AMP-dependent protein kinase

18
Q

True/False: Regarding the production of human sperm FSH is required

A

True

19
Q

Functions of the Sertoli cells in the seminiferous tubules include

A

maintenance of the blood-testis barrier

20
Q

An indication that ovulation has taken place is an increase

A

in serum progesterone levels

21
Q

The hormone involved in the ejection of milk from a lactating mammary gland is

A

oxytocin

22
Q

Plasma levels of calcium can be increased most rapidly by the direct action of parathyroid hormone on the

A

bones

23
Q

True/False: Regarding human growth hormone, it stimulates production of somatomedins by the liver

A

True

24
Q

The basic effects of growth hormone on body metabolism

A

increase the use of fats for energy

25
Q

True/False: Regarding the actions of glucagon, it stimulates gluconeogenesis in the liver

A

True

26
Q

The actions of insulin include enhancing

A

potassium entry into cells

27
Q

Injection of thyroid hormone into a human subject will increase

A

muscle protein synthesis

28
Q

The effects of primary hyperaldosteronism (Conn’s syndrome) include

A

hypokalemia

29
Q

Hyperparathyroidism decreases the plasma levels of

A

Phosphate

30
Q

Adrenalectomy is associated with

A

Hyperglycemia with decreased insulin sensitivity

31
Q

Hyperthyroidism is characterized by

A

increased basal metabolic rate

32
Q

Insulin-independent glucose uptake occurs in

A

the brain

33
Q

True/False: Iron is transported in the blood bound to transferrin

A

True

34
Q

The actions of angiotensin II include

A

initiation of thirst

35
Q

A person with hypothyroidism would explain

A

sleepiness

36
Q

The islets of Langerhans secrete

A

insulin and glucagon

37
Q

Progesterone is secreted by

A

the corpus luteum

38
Q

The anti-inflammatory effect of cortisol treatment is thought to be due to

A

stabilization of cellular lysosomal membranes

39
Q

Administration of estrogens in women will

A

produce cyclic changes in the vagina and endometrium

40
Q

The gastrointestinal hormone involved in initiation of migrating motor complexes is

A

motilin

41
Q

The principal androgen responsible for transforming undifferentiaed fetal external genitalia into male external genitalia is

A

dihydrotestoterone

physiology problems (9 decks)

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