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ONLINE PHYSIOLOGY > EXAM 4!!! > Flashcards

EXAM 4!!! Flashcards

1
Q

Which of the following is correctly described as a hypophysiotropic hormone?

A

GnRH

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2
Q

A protein made in the Sertoli cells and secreted into the seminiferous tubule to bind testosterone?

A

androgen binding protein (ABP)

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3
Q

Which of the following is a mechanism for increasing heat production when core body temp falls?

A

increase in shivering

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4
Q

the main difference between the modes of action of peptide hormones and steroid hormones

A

peptide hormones bind to receptors on the cell surface whereas steroid hormones bind to intracellular receptors

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5
Q

which of the following steroids is synthesized first from a cholesterol molecule

A

testosterone

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6
Q

The SRY gene protein

A

is normally coded for by a gene that is present on the Y chromosome

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7
Q

Which of the following could be considered the physiological function(s) of parathyroid hormone?

A

it directly increases calcium reabsorption in the kidneys

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8
Q

which of the following digestive enzyme is most functional in a very ACIDIC environment?

A

pepsin

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9
Q

which of the following products of digestion and absorption would most likely enter the system….?

A

chylomicrons

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10
Q

A menstrual cycle associated with painful menses is termed

A

dysmenorrhea

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11
Q

The network of nerve cells that lies between the circular and longitudinal muscles of gastro….. is called a:

A

myenteric plexus

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12
Q

Calcitonin is an important regulatory hormone whose synthesis and release is stimulated primarily by:

A

elevated plasma calcium levels

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13
Q

The epididymis draining each testis in the male leads to the vas defers

A

true

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14
Q

which of the following metabolic changes would most likely occur after an increase in plasma cortisol levels?

A

increased protein catabolism

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15
Q

the neural and hormonal control of the gastrointestinal system is subdivided into several phases. The phase…..cholecystokinin (CCK) secretion is the

A

intestinal phase

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16
Q

The ability to produce progesterone in the luteal phase of a menstrual cycle is a pregnancy to occur….. granulosa cells of the corpus luteum into progesterone-secreting cells is…?

A

LOOK UP

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17
Q

Which of the following is most responsible for the normal onset of puberty in both males and females

A

an increase in pulsatile release of hypothalamic GnRH

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18
Q

The sphincter of Odi is a ring of smooth muscle located in which of the following areas:

A

where the common duct from the liver and pancreas enters the duodenum

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19
Q

Which of the following statements is TRUE regarding the regulation of the gastric function

A

Pacemaker cells in the gastric wall produce peristaltic waves in the stomach

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20
Q

Which of the following is TRUE regarding the transport of hormones

A

steroid and thyroid hormones are primarily transported dissolved in

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21
Q

An absence of adequate thyroid hormones during FETAL DEVELOPMENT leads to

A

cretinism

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22
Q

Which of the following would be the MOST LIKELY diagnosis in a 16 year old female with decrease in food intake?

A

anorexia nervosa

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23
Q

Which of the following would most likely decrease the release of insulin from the pancreatic islet

A

. increased sympathetic input to the islet cell

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24
Q

the lipoproteins that function to transport cholesterol from peripheral tissues to the liver is:

A

HDL

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25
Q

which statement best describes the manner in which growth hormones stimulate

A

it stimulates the release of insulin-like growth factor I from the liver

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26
Q

Which of the following would be accurately described as a form of INSENSIBLE water-loss?

A

water lost through the respiratory tract during expiration

27
Q

Which of the following BEST describes the composition of SEMEN in ejaculation

A

prostate gland secretions/ seminal vesicle gland secretions/ sperm cells

28
Q

Pernicious anemia would most likely be caused by which

A

surgical removal of part of the stomach

29
Q

Which of the following is an examples of a LONG neural reflex pathway

A

LOOK UP?

30
Q

Which of the following is most likely to contribute to the development of ulcers in the stomach and duodenum?

A

H Pylori

31
Q

The undifferentiated germ cells in the testes of the newborn male are called

A

spermatogonia

32
Q

Which of the following is most likely a characteristic of fat-soluble vitamins?

A

their absorption is facilitated by the presence of bile salts in the lumen of the gut

33
Q

Some amino acids absorbed in the small intestine from food are deaminated…production. These carbohydrate-like intermediates are called

A

a-ketoacids

34
Q

The sloughing of endometrial tissue at the end of a normal menstrual cycle where no pregnancy occurs is due to

A

increase in plasma estrogen

35
Q

The urine pregnancy test that can be purchased and determines pregnancy because hormone (LH) present in the urine:

A

false

36
Q

the stomach is a complex organ that has many cell types secreting several different hormones ACID known as:

A

parietal cells

37
Q

The secretory phase of the menstrual cycle

A

occurs during the same time as the luteal phase of the menstrual cycle

38
Q

The net result of oogenesis is that each primary oocyte can produce only one vinus ovum, but….can produce four viable spermatozoa

A

true

39
Q

one major difference between type 1 diabetes and type 2 is

A

plasma insulin is typically present in normal or above normal levels in type2

40
Q

During the first 5 or 6 days of a normal menstrual cycle the follicle selected for ovulation receptors are found on its thecal cells:

A

FSH/LH

41
Q

The pancreatic islet cells responsible for the secretion of insulin are the

A

beta cells

42
Q

The hormones secreted by the posterior pituitary includes

A

vasopressin and ocytocin

43
Q

The primary SOURCE of the estradiol 17B found in the plasma of adult females

A

adrenal medulla

44
Q

In adult males who have undergone a vasectomy does not affect the function of the:

A

leydig cells

45
Q

Erectile dysfunction is very common in males over 60 years of age. ….Action among these drugs is dilation of the penile arteries through the release of:

A

nitric oxide

46
Q

In the embryological differentiation of a normal FEMALE:

A

female genitalia form in the absence of endrogen stimulation

47
Q

Which of the following is an important part of intestinal-mediated immunity

A

Peyers patches

48
Q

Regarding the structure and synthesis of hormones

A

amine hormones are generated by cleaving a pro-hormone into an active hormone

49
Q

Which of the following would most likely contribute to the maintenance of adequate blood

A

hepatic gluconeogenesis

50
Q

Sweating promotes heat loss from the body by the process of

A

evaporation

51
Q

Which of the following statements is TRUE regarding Crohn’s disease and ulcerative colitis?

A

they are both inflammatory bowel diseases

52
Q

Which of the following is the most important function of saliva

A

moisten and lubricate food for swallowing

53
Q

The protein-digesting enzyme that is normally released from gastric glands in the stomach is which of the following

A

pepsin

54
Q

Which of the following statements regarding the measurement of the energy of metabolism is FALSE

A

basal metabolic rate is independent of age, sex, and body size

55
Q

An example of LONG-loop negative feedback would be

A

inhibition of TRH release by TH

56
Q

If the adrenal glands were removed from a patient, his plasma cortisol levels would……response to the _______secretion of _____by the ______

A

LOOK UP

57
Q

Which of the following is NOT true of Cushing’s syndrome

A

hypotension occurs as consequence of the disease

58
Q

The binding of insulin to its receptrs on the cell membranes muscle endiposse cells…uptake…the following mechanisms?

A

secondary active transport

59
Q

Fever is an elevation in body temperature due to chemical messengers…. Called:

A

endogenous pyrogens

60
Q

In the absensce of thyroid hormone, epinephrine stimulation…..epinephrine causes a much more substantial……called:

A

permissive….look up??

61
Q

Which one of the following vitamins requires intrinsic factor from the stomach

A

B12

62
Q

during the fetal life in the normal XX female, most of the oogonia in the fetus

A

LOOK UP

63
Q

Which of the following could cause SECONDARY HYPERSECRETION of ed…?

A

a CRH-releasing tumor

64
Q

EXCESS secretion of pituitary growth hormone prior to puberty can lead to

A

giantism

ONLINE PHYSIOLOGY (13 decks)

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