EXAM 4!!! Flashcards by Kelly McCloskey

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

GnRH

How well did you know this?

Not at all

Perfectly

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

androgen binding protein (ABP)

How well did you know this?

Not at all

Perfectly

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

increase in shivering

How well did you know this?

Not at all

Perfectly

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

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

How well did you know this?

Not at all

Perfectly

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

testosterone

How well did you know this?

Not at all

Perfectly

The SRY gene protein

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

How well did you know this?

Not at all

Perfectly

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

it directly increases calcium reabsorption in the kidneys

How well did you know this?

Not at all

Perfectly

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

pepsin

How well did you know this?

Not at all

Perfectly

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

chylomicrons

How well did you know this?

Not at all

Perfectly

A menstrual cycle associated with painful menses is termed

dysmenorrhea

How well did you know this?

Not at all

Perfectly

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

myenteric plexus

How well did you know this?

Not at all

Perfectly

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

elevated plasma calcium levels

How well did you know this?

Not at all

Perfectly

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

true

How well did you know this?

Not at all

Perfectly

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

increased protein catabolism

How well did you know this?

Not at all

Perfectly

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

intestinal phase

How well did you know this?

Not at all

Perfectly

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…?

LOOK UP

How well did you know this?

Not at all

Perfectly

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

an increase in pulsatile release of hypothalamic GnRH

How well did you know this?

Not at all

Perfectly

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

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

How well did you know this?

Not at all

Perfectly

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

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

How well did you know this?

Not at all

Perfectly

Which of the following is TRUE regarding the transport of hormones

steroid and thyroid hormones are primarily transported dissolved in

How well did you know this?

Not at all

Perfectly

An absence of adequate thyroid hormones during FETAL DEVELOPMENT leads to

cretinism

How well did you know this?

Not at all

Perfectly

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

anorexia nervosa

How well did you know this?

Not at all

Perfectly

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

. increased sympathetic input to the islet cell

How well did you know this?

Not at all

Perfectly

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

HDL

How well did you know this?

Not at all

Perfectly

which statement best describes the manner in which growth hormones stimulate

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

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

water lost through the respiratory tract during expiration

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

prostate gland secretions/ seminal vesicle gland secretions/ sperm cells

Pernicious anemia would most likely be caused by which

surgical removal of part of the stomach

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

LOOK UP?

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

H Pylori

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

spermatogonia

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

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

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

a-ketoacids

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

increase in plasma estrogen

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

false

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

parietal cells

The secretory phase of the menstrual cycle

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

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

true

one major difference between type 1 diabetes and type 2 is

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

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

FSH/LH

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

beta cells

The hormones secreted by the posterior pituitary includes

vasopressin and ocytocin

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

adrenal medulla

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

leydig cells

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:

nitric oxide

In the embryological differentiation of a normal FEMALE:

female genitalia form in the absence of endrogen stimulation

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

Peyers patches

Regarding the structure and synthesis of hormones

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

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

hepatic gluconeogenesis

Sweating promotes heat loss from the body by the process of

evaporation

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

they are both inflammatory bowel diseases

Which of the following is the most important function of saliva

moisten and lubricate food for swallowing

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

pepsin

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

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

An example of LONG-loop negative feedback would be

inhibition of TRH release by TH

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

LOOK UP

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

hypotension occurs as consequence of the disease

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

secondary active transport

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

endogenous pyrogens

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

permissive....look up??

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

B12

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

LOOK UP

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

a CRH-releasing tumor

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

giantism