Which of the following is/are found in the seminiferous tubules?
sertoli cells
spermatogonia
tunica albuginea
Testosterone is produced by the
interstitial cells of Leydig
- sertoli cells - interstitial cells of Leydig
none of the above
Which is/are true of the prostate gland?
produces a thick, viscous secretion
delivers its secretions into the ejaculatory duct
is a reservoir for spermatogonia
all of the above
Muscle is found in which of the following?
oviduct
endometrium
graafian follicles
Estrogen is released by both the corpus luteum and the ovarian follicular cells.
Which of the following correctly lists the cell types formed during spermatocytogenesis, starting with the least mature to the most mature?
spermatids -> spermatogonia -> spermatocytes -> spermatozoa
spermatozoa -> spermatids -> spermatocytes -> spermatogonia
spermatogonia -> spermatids -> spermatocytes -> spermatozoa
spermatogonia -> spermatocytes -> spermatids -> spermatozoa
Typically, the juxtaglomerular cells are found in the
afferent glomerular arterioles
renal pyramids
visceral layer of Bowman's capsule
proximal convoluted tubule
A characteristic feature of the cells forming the proximal convoluted tubules is
stereocilia
brush border of cilia
extensive microvilli
concentration of lysosomes
A relatively clear cytoplasm and distinct lateral cell borders are distinguishing features of cells within the
ascending thin loop of henle
descending thick loop of henle
collecting tubule
ascending thick loop of henle
The cells of the macula densa are
smooth muscle
skeletal muscle
neurons
simple epithelium
The entire conducting region/division of the respiratory system is lined by pseudostratified epithelium
Hyaline cartilage in the shape of the letter "C" is a characteristic of
Larynx
Trachea
intrapulmonary bronchi
terminal bronchioles
Clara cells
are ciliated
secreted surfactant
are present in bronchioles
Moving down the respiratory tree, cilia disappear before goblet cells.
The pores of Kohn are found
along the vocal folds
within the terminal bronchiole
between the epithelial cells of the trachea
within the interalveolar septa
The majority of the surface of the alveolar wall is formed by the
clara cell
pneumocyte type I
pneumocyte type II
dust cell
True vocal folds/cords are lined by
respiratory epithelium
stratified squamous epithelium
simple cuboidal epithelium
simple ciliated columnar epithelium
The region of the pituitary gland containing chromophils is the
pars distalis
pars nervosa
pars intermedia
pars tuberalis
Spongiocytes are located in the
zona glomerulosa
zona reticularis
zona fasciculata
Chromaffin tissue is found in the
anterior pituitary
adrenal cortex
adrenal medulla
thyroid gland
Calcitonin is produced by the cells in the
parathyroid gland
Herring bodies
contain hormone produced by pituicytes
are the storage sites of oxytocin
only appear after about 7 years of age
Follicular cells both synthesize and store thyroxine.
Oxyphils are the
most numerous cells of the adrenal medulla
eosinophilic cells of the parathyroid gland
storage site of oxytocin
- most numerous cells of the adrenal medulla - storage site for oxytocin - eosinophilic cells of the parathyroid gland
Parafollicular cells of the thyroid gland
span the follicular wall and are in direct contact with the thyroglobulin
are known as the "C" cells, producing calcitonin
break down thyroglobulin following stimulation from TSH
- are known as the "C" cells, producing calcitonin - break down thyroglobulin following stimulation from TSH - span the follicular wall and are in direct contact with the thyroglobulin
Characteristics of the pineal gland are
sand acervuli, follicles, and Herring bodies
melatonin synthesis, sand concretions, and pinealocytes
serotonin synthesis, oxyphils, and acervuli
follicular cells, melatonin secretion, and brain sand
Epinephrine and norepinephrine are produced by
pituicytes
spongiocytes
The stem cells of the alveoli are the pneumocyte I cells
Glands persist into terminal bronchioles.
The mature sperm cell contains
acrosome containing mitochondria
midpiece containing mitochondria
acrosome containing microtubules
midpiece containing the nucleus
Pedicels in the kidney
are found in the renal corpuscle formed by podocytes
surround the renal tubules as part of the peritubular capillaries
span the capsular space connecting the visceral and parietal layers of Bowman's capsule
Renin, a proteolytic enzyme, is found in the
macula densa cells
juxtaglomerular cells
mesangial cells
parietal layer of Bowman's capsule
From the assigned reading, which statement is true?
Adults with end stage renal disease show alterations in their gingival health
Kidney health is reflected in the gingival health of children with end stage renal failure
end stage renal failure alters the periodontal ligament physiology
Which of the following distinguishes respiratory bronchioles from terminal bronchioles?
presence of smooth muscle
presence of alveoli
presence of simple epithelium
presence of cartilage
Melatonin matches with which of the following?
pinealocytes
acidophils
zona fasciculate
Glucocorticoids match with which of the following?
Mineral corticoids match with which of the following?
Prolactin matches with which of the following?
The respiratory membrane includes
Clara cells, endothelial cells, and red blood cells
endothelial cells, red blood cells, and basal lamina
pneumocytes, dust cells, and fibroblasts
pneumocyte II cells, continuous capillaries, and fibroblasts
Simple cuboidal epithelium forms the visceral and parietal layers of Bowman's capsule.
- tunica albuginea - spermatogonia - sertoli cells
- interstitial cells of Leydig - sertoli cells
The serosa consist primarily of simple squamous epithelium while the adventitia consists of connective tissue.
Projections along the digestive tract that allow for absorption are accurately described as
microvilli on the basal surfaces of intestinal absorptive cells
villi comprised of mucosa and submucosa
plicae circulares that include only mucosa
- microvilli on the basal surfaces of intestinal absorptive cells - villi comprised of mucosa and submucosa - plicae circulares that include only mucosa
Submucosal glands int he digestive tract can be found in the
crypts of Lieberkuhn
esophagus
stomach
The following are observed in a tissue section from the digestive tract: nonkeratinized stratified epithelium, both skeletal and smooth muscle, both adventitia and serosa. This tissue was taken from
small intestine
ascending colon
transverse colon
Intracellular canaliculi, tubulovesicles, and an eosinophilic cytoplasm are found in the
paneth cells of the stomach
parietal cells of the stomach
paneth cells of the small intestine
parietal cells of the small intestine
chief cells in the fundic gland
Lacteals, Peyer's patches, antimicrobial lysozyme, and crypts of Lieberkuhn are characteristic of the
mucosa of stomach
mucosa of small intestine
mucosa of large intestine
There are ____ portal canals (aka triads or trinities) in the classic liver lobule.
1
2
3
6
Which of the following would reveal the most tight junctions in a given area?
Kupffer cells
hepatocytes
hepatic sinusoids
all of the above equally
The wall of the gall bladder includes both a muscularis mucosae and a distinct submucosa, as found in the alimentary canal.
Which of the following accurately descries the exocrine pancreas?
acinar cells with basophilic basal cytoplasm
acinar cells with acidophilic apical cytoplasm
produces zymogen granules
- acinar cells with basophilic basal cytoplasm - acinar cells with acidophilic apical cytoplasm
- acinar cells with basophilic basal cytoplasm - acinar cells with acidophilic apical cytoplasm - produces zymogen granules
True vocal folds or true vocal cords are lined by
simple squamous epithelium
pseudostratified ciliated columnar epithelium
- stratified squamous epithelium - pseudostratified ciliated columnar epithelium
The skeleton of the trachea is composed of
smooth and skeletal muscle
C-shaped cancellous bone
hyaline cartilage
A component of the respiratory division of the respiratory system is the
extrapulmonary bronchi
alveolus
terminal bronchiole
Clara cells are
found in terminal bronchioles
secrete surfactant
line the true vocal folds or true vocal cords
present in respiratory bronchioles
ciliated
Most of the alveolar surface is lined by Type I alveolar cells (pneumocytes)
Moving along the respiratory system, from the trachea to the alveolus, goblet cells disappear before ciliated cells.
The pores of Kohn are located in the
conducting division of the respiratory system
The respiratory membrane (air-blood barrier) includes
surfactant
Type I pneumocyte
simple squamous endothelial cell
- surfactant - type I pneumocyte
- surfactant - type I pneumocyte - simple squamous endothelial cell
Unlike terminal bronchioles, respiratory bronchioles contain alveoli.
The structure at the tip of the pointer is located in a
glomerulus
plicae circulares
villus
rugae
haustra
The tissue in the photomicrograph below was taken from the
trachea
large intestine
liver
The tissue below was taken from what organ?
renal cortex
renal medulla
pancreas
The black triangle is in the lumen of a cross section of
The black cells at the tip of the arrows are
podocytes
The tissue below was taken from the
pineal gland
The tissue below was taken from
colon
pituitary
parathyroid
The photomicrograph below is
adrenal gland
pituitary gland
the respiratory system
the kidney
thyroid
gall bladder
uterus
type I pneumocyte
Colloid material is found in both the pituitary gland and the thyroid gland.
The anterior pituitary or adenohypophysis includes the
pars distalis and pars nervosa
infundibulum and pars tuberalis
pars intermedia and pars distalis
infundibulum and pars intermedia
pars nervosa and infundibulum
Pars nervosa matches most closely with
chromophobes
serotonin
calcitonin
oxyphil cells
Pars distalis matches most closely with
herring bodies
In the kidney, the base of the medullary pyramids faces the cortex and the apices face the renal pelvis.
The corpus luteum secretes both estrogen and progesterone
Testosterone is produced by
Leydig cells
spermatogenic cells
- leydig cells - spermatogenic cells
- leydig cells - spermatogenic cells - sertoli cells
The renal corpuscle consists of the
Bowman's capsule
nephron
- glomerulus - Bowman's capsule
- glomerulus - Bowman's capsule - nephron
A hormone synthesized by acidophils in the pituitary gland is
ACTH
PTH
TSH
FSH
Podocyte (matching)
phagocyte
duct of Bellini
distal convoluted tubule
filtration slit
Mesangial cell (matching)
Papilla (matching)
duct of bellini
Macula densa (matching)
juxtaglomerular cell
Pineal gland (matching)
Thyroid gland (matching)
Parathyroid gland (matching)
This gland contains cords of cells arranged in round clusters, parallel rows, and interwoven networks.
adrenal
pineal
Chromaffin cells of the adrenal gland
contain epinephrine
are in one stage of the three stages in the secretory cycle
are also called spongiocytes
- contain epinephrine - are in one stage of the three stages in the secretory cycle
- contain epinephrine - are in one stage of the three stages in the secretory cycle - are also called spongiocytes
Thyroid hormones (thyroxine and triiodothyronine)
are synthesized by parafollicular cells
are produced by thyrotropes
are stored as thyroglobulin
- are produced by thyrotropes - are stored as thyroglobulin