Spectial Exam 4 Flashcards
(32 cards)
Human ova and sperm are similar in that what ?
a. about the same number of each is produced per month
b. they have the same number of chromosomes
c. they are about the same size
d. they have the same degree of motility
They have the same number of chromosomes
Shortly before release of the ova ?
a. blood flow to the follicle increases
b. proteolytic enzymes are inhibited
c. there is contraction of the smooth muscle surrounding the follicle
d. the pressure in the antrum decreases
there is contraction of the smooth muscle surrounding the follicle
Regarding the endometrium of the uterus ?
a. secretory glands of the endometrium are in the shape of acini
b. stratum functionale is retained at the time of menstruation
c. epithelium is pseudostratified columnar with stereocilia
d. spiral arteries supply the portion of the endometrium that is shed at the time of menstruation
e. epithelium is pseudostratified columnar with stereocilia
spiral arteries supply the portion of the endometrium that is shed at the time of menstruation
A hormone that regulates blood sugar levels is ?
a. calcitonin
b. ADH
c. TSH
d. aldosterone
e. cortisol
cortisol
The structural characteristic that defines an endocrine gland is ?
a. The absence of ducts
b. Secretory cells surrounded by a basal lamina
c. Fenestrated capillaries
d. Epithelial cells forming secretory units
e. Connective tissue capsule with septa
Epithelial cells forming secretory units
The anterior pituitary
a. Is composed of unmyelinated axons
b. Synthesizes and secretes vasopressin
c. Is derived from the neuroectoderm of the primitive brain
d. Includes the pars nervosa
e. Receives its blood supply via the hypophyseal portal veins
Receives its blood supply via the hypophyseal portal veins
(！） _________ hormone is secreted by the chromophobes of the anterior pituitary ?
a. growth hormone
b. ACTH
c. Luteinizing
d. Oxytocin
e. None of the above
None of the above
“Frothy” cells are characteristic of the
a. pineal gland
b. zona fasciculata
c. adrenal medulla
d. parathyroid gland
zona fasciculata
Which endocrine organ stores its secretory product in follicles?
a. Thyroid gland
b. Adrenal gland
c. Pituitary gland
d. Parathyroid gland
Thyroid gland
Which chemical is essential for the production of the active thyroid hormone?
a. Calcium
b. Parathyroid hormone
c. Sodium
d. Calcitriol
e. Iodide
Iodide
What important role do the parafollicular cells perform in the endocrine system?
a. Feedback on the pituitary gland to decrease its stimuli
b. Secrete parathormone
c. Function of these cells is not known
d. Stimulate osteoclast activity
e. Secrete and release the hormone calcitonin
Secrete and release the hormone calcitonin
Select the incorrect pairing of a part of the adrenal gland and the hormone it releases.
a. Zona glomerulosa— aldosterone
b. Zona fasciculata—cortisol
c. Zona reticularis—androgens
d. Adrenal medulla—epinephrine
e. Zona fasciculata—aldosterone
Zona fasciculata—aldosterone
Acidophils of the pituitary gland ?
a. Are found in the pars intermedia
b. Have granules that stain blue with routine H & E stain
c. Are chromophobes
d. Are more abundant than basophils in the anterior pituitary
e. Secrete vasopressin
Are more abundant than basophils in the anterior pituitary
Which of the following is a component of the adrenal medulla?
a. Zona reticularis
b. Zona glomerulosa
c. Zona fasciculata
d. Chromaffin cells
Chromaffin cells
Which gland secretes calcitonin?
a. Pancreas
b. Thyroid
c. Pineal gland
d. Adrenal gland
Thyroid
Hormone that regulates salt levels include:
a. aldosterone
b. atrial natriuretic
c. Aldosterone (duplicate)
d. ADH
e. calcitonin
aldosterone
Regarding thyroid follicles,
a. An active follicle has a higher (more columnar) epithelium and little stored colloid.
b. Follicular cells secrete calcitonin
c. Follicles are lined with stratified columnar epithelium
d. They are poorly vascularized
An active follicle has a higher (more columnar) epithelium and little stored colloid.
Which of the following is present in a primary follicle of the ovary
a. Antral cavity
b. Zona pellucida
c. Cumulus oophorous
d. Corona radiata
Zona pellucida
What type of tissue composes most kidney tubules?
a. Simple squamous epithelium
b. Simple cuboidal epithelium
c. Simple columnar epithelium
d. Stratified squamous epithelium
Simple cuboidal epithelium
One function of the corpus luteum is to
a. nourish and protect the egg cell
b. produce prolactin in the alveoli
c. produce progesterone and estrogen
d. stimulate ovulation
produce progesterone and estrogen
The function of mesangial cells in the renal corpuscle is the ?
a. Secretion of renin
b. Secretion of antidiuretic hormone
c. Formation of a portion of the filtration barrier
d. Active transport of sodium
e. Clear filtration slits of debris
Clear filtration slits of debris
Select the incorrect pairing of a part of the adrenal gland and the hormone it releases.
a. Zona fasciculata—aldosterone pairing
b. Adrenal medulla—epinephrine
c. Zona glomerulosa—aldosterone
d. Zona fasciculata—cortisol
e. Zona reticularis—androgens
Zona fasciculata—aldosterone pairing
The permeability of the collecting ducts is directly influenced by a secretion produced by the ?
a. Anterior pituitary
b. Posterior pituitary
c. Adrenal cortex
d. Adrenal medulla
Posterior pituitary
Renin is secreted by
a. Endothelial cells of the afferent arteriole
b. Cells of the macula densa
c. Juxtaglomerular cells
d. Posterior pituitary
Juxtaglomerular cells
