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54 Cards in this Set

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Released by axon terminals located near the primary capillary plexus
Releasing and inhibiting hormones
Produced by cells whose bodies lie in hypothalamic nuclei--

A)ADH
B)ACTH
C)FSH
D)TRH
E)TSH
C
C
Which is true of the primary capillary plexus?

A)Empties directly into secondary capillary plexus
B)Carries releasing hormones to the pars nervosa
C)located in pars distalis
D)delivers pituitary hormones to circulation
E)important component of the hypophyseal portal system
E
E
Which of the following is a gonadotropin?

A)ADH
B)ACTH
C)FSH
D)TRH
E)TSH
C
Pituitary hormone that targets the renal collecting ducts--

A)ADH
B)ACTH
C)FSH
D)TRH
E)TSH
A
carried to targets via hypophyseal portal system--

A)ADH
B)ACTH
C)FSH
D)TRH
E)TSH
D
targets limited to mammary gland, myoepithelial cells and uterine smooth muscle

A)ADH
B)Dopamine
C)Oxytocin
D)Prolactin
E)Somatostatin
C
primarily targets secretory cells of mammary gland--

A)ADH
B)Dopamine
C)Oxytocin
D)Prolactin
E)Somatostatin
D
contains axons of hypothalamic neurons
neurohypophysis
part of pituitary gland innervated only by autonomic fibers from the carotid plexus--
adenohypophysis
Tissue type that surrounds Rathke's cysts
Simple cuboidal
Normal neurohypophysis fibroblasts--

A)do not secrete collagen
B)do not secrete glycosaminoglycans
C)contain Herring bodies
D)derive from neural crest cells
E)myelinate axons of hypothalamic neurons
A
Hypothalamic neurons that produce oxytocin release most of their secretions through axons terminating in or near which sites?
Pars nervosa
Which of the following is true of hormones?

A)very specific effects on target cells
B)produced mainly by exocrine glands
C)high concentration needed for effects
D)maximum effect produced near origin
E)must contain short or long chain polypeptides
A
Hypersecretion of dopamine is likely to produce what?

A)hyposecretion of prolactin
B)precocious mammary gland development
C)increased somatotropin production
D)increased oxytocin secretion
E)increased pituitary basophils
A
What feature of pituitary basophils makes them PAS-positive?
Glycoprotein-filled granules
Produced in responce to Angiotensin II-

A)Aldosterone
B)Corticosterone
C)DHEA
D)Epinephrine
E)Norepinephrine
A
Produced in responce to decreased blood Ca levels
Parathyroid hormone
Produced in responce to increased blood calcium levels
calcitonin
Which hormone is a glucocorticoid?


A)Aldosterone
B)Corticosterone
C)DHEA
D)Epinephrine
E)Glucagon
B
Produced in response to low blood sugar
glucagon
Hormone production influenced by external visual stimuli--


A)glucagon
B)insulin
C)somatostatin
D)pancreatic polypeptide
E)melatonin
E
Raises metabolic rate


A)somatostatin
B)insulin
C)glucagon
D)calcitonin
E)thyroxine
E
Cell type that produces glucagon
Alpha cells
Which is true of the adrenal cortex?


A)derived from neural crest cells
B)contains mainly chromaffin cells
C)abundant SER
D)secretes catecholamines
E)excessive secretion = Addison's disease
C
Which is true of parathyroid hormone?


A)lowers blood calcium
B)targets kidney, bone, and small intestines
C)increased levels lead to tetany
D)synthesized by thyroid parafollicular cells
E)thyroxine
B
Which is true of brain sand?


A)Found only in diseased pineal bodies
B)becomes decalcified with increasing age
C)intesely acidophilic
D)may serve as a landmark for radiologists
E)stores melatonin
D
Which is true of the fetal adrenal cortex?

A)proliferates rapidly soon after birth
B)located between capsule and cortex
C)produces sulfated androgens
D)forms ganglion cells of adult medulla
E)secretions limited to fetal placenta
C
Responsible for hypersecretion of gastrin that may lead to gastric and duodenal ulcers seen in Zollinger-Ellison syndrome
Delta cells
Connective tissue sheath surrounding each seminiferous tubule
Tunica propria
Protects spermatozoa from autoimmune attack
Zona occludens of Sertoli cells
Secrete testosterone
Leydig's (interstitial) cells
Lined exclusively with Sertoli cells
Tubuli recti
Lined by transitional epithelium--


A)ductus deferens
B)ejaculatory duct
C)prostatic urethra
D)membranous urethra
E)penile urethra
C
What gland in the male reproductive tract contains the highest levels of fructose?
seminal vesicle
produces androgen-binding protein and inhibin
Sertoli cells
Feature of adluminal compartment, but not basal compartment of seminiferous tubule


A)Accessible to immune system
B)Sertoli cells
C)spermatids
D)spermatogonia
E)Leydig's cells
C
Tissue of origin of Spermatogonia
yolk sac endoderm
Nondisjunction during the first mitotic division in seminiferous epithelium results in abnormal numbers of chromosomes in what cell types?
Secondary spermatocyte
Which is true of spermiogenesis?


A)occurs before puberty
B)cytodifferentiation of early spermatids
C)spermiocytogenesis, meiosis, spermatogenesis
D)takes place in diploid cells
E)produces primary spermatocytes
D
Function as the blood-testis barrier
Sertoli cells
Result of restricted blood flow through the helicine arteries of the penis from atherosclerosis
impotence
Hyposecretion of FSH results in what?


A)No symptoms
B)loss of libido
C)low testosterone levels
D)low sperm count
E)prostatic hypertrophy
D
Which stage of ovarian follicle development immediately follows the multilaminar primary follicle stage
secondary follicle
What structures comprise the placenta?
chorion frondosum (fetus) and decidua basalis (maternal)
epithelial type of vaginal mucosa
stratified squamous epithelium
cells that secrete progesterone
granulosa lutein cells
site where fertilization usually occurs
ampullaroisthimic junction of the uterine tube
milk is produced by what mechanism
merocrine secretion
at which stage of embryonic development is the zona pellucida typically shed?
blastocyst
pituitary hormone responsible for maintaining progesterone secretion in the corpus luteum during menstruation
luteinizing hormone
occurs in resonse to the neural stimulation that accompanies suckling of the mother's bresast by a newborn infant
contraction of smooth muscle in the myometrium
cause of normally acidic pH in the vaginal lumen
bacterial conversion of glycogen from exfoliated cells into lactic acid
surge of this hypothalamic hormone triggers ovulation
LH