Science Quiz / GI Tract Histology

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Can you name the Histologic HYTQ info about the GI tract?

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upper third of the anal canal and it contains simple columnar epithelium
this hormone stimulates insulin release and inhibits gastric acid secretion
Cholecystokinin (CCK) ____ pancreatic secretions. (stimulates or inhibits)
intestinal glands are also known as
which cells secrete pepsinogen?
the dilated distal portion of the ailmentary canal.
parietal cells are (eosinophilic or basophilic)?
unicellular mucin secreting glands
intestinal absorptive cells are known as
primary function of enterocytes
inner layer of the muscularis externa
the actin filaments of microvilli insert into the _______ ____.
Lamina propria is normally composed of what type of connective tissue?
what binds to vitamin b12 to facilitate its absorption?
In a parietal cell, H levels are ____ (high or low) inside the cell.
nerve plexus in the muscularis externa
the first, shortest and widest part of small intestine.
antigen-transporting epithelial cells that overlie Peyer’s patches
constitutive secretion occurs on what surface in a Polarized Epithelial Cell
which cells of the gastric gland produce HCl?
Vasoactive inhibitory peptide (VIP) stimulates what?
this hormone inhibits gastric acid secretion and release of other GI hormones
which 2 portions of the GI tract contain submucosal glands?
True or False: HCl converts pesinogen into pepsin
Secretin stimulates pancreatic secretions. What does it inhibit?
QuestionAnswer
Bcl-2 inhibits apoptosis by suppressing which molecule
which neurotransmitter stimulates the secretion of
_____ junctions establish a barrier between the intestinal lumen and the epithelial intercellular compartment
constitutes the upper two fifths of the small intestine.
continuation of the lower three fifths of the intestine.
numerous nodules of lymphatic tissue in the intestine
transports two ions or metabolites in opposite directions, of which one ion travels with its gradient and the other against its gradient.
In an enterocyte cell, glucose levels are ____ (high or low) inside the cell.
True or False: Glucose uptake in the intestines requires one symporter at the apical surface, one uniporter at the basal surface, and a H/K ATPase at the basal surface.
In an enterocyte cell, Na levels are ____ (high or low) inside the cell.
outer layer of the muscularis externa
cells located in the neck of the fundic gland. secretes soluble mucous
the place where stem cells of the intestinal gland divide is known as the
In a parietal cell, Cl levels are ____ (high or low) inside the cell.
transports one or two ions or metabolites in the same or opposite directions, of which both ions travel against their gradients. This transporter hydrolyzes ATP for energy.
submucosal glands of the duodenum
surface mucous cells secrete
this hormone stimulates peristalsis and gastric and intestinal motility
these cells function in the large intestine for reabsorption or water and electrolytes
submucosal nerve plexus
this sphincter is formed from the striated muscle of the pelvic floor
this molecule inhibits cell death
this enzyme hydrolyzes carbonic acid to hydorgen ions within parietal cells
In a parietal cell, K levels are ____ (high or low) inside the cell.
this layer of the GI tract consists of epithelium, lamina propria, and muscularis mucosa
QuestionAnswer
lower third of the anal canal. lined with stratified sqaumous epithelium.
this molecule promotes apoptosis
thickened portion of the longitudinal layer of the muscularis externa in the large intestine
transports one ion or metabolite with its gradient.
simple columnar cells that line the gastric pits
In an enterocyte cell, K levels are ____ (high or low) inside the cell.
this layer of the GI tract consists of mesothelium and its underlying connective tissue
regulated secretion is targeted to which surface of a polarized epithelial cell?
The submucosa is normally composed of what type of connective tissue?
these cells release hormones into the GI tract.
middle third of the anal canal. transition from the simple columnar epithelium to stratified squamous
programmed cell death
chief cells are (eosinophilic or basophilic)?
hormone produced in the stomach that stimulates gastric acid secretion
cells whose primary function is to maintain mucosal innate immunity by secreting antimicrobial substances
what transports the hydrogen ions from the cytoplasm of parietal cells to the lumen of the caniculus?
classification of the mucosa of the esophagus
transports two ions or metabolites in same direction, of which one ion travels with its gradient and the other against its gradient.
Inflamationof the proximal small intestine with autoantibodiesthat recognize tranglutaminaseand targeting the villiepithelial cells for cell death.
internal anal sphincter is formed from the thickening of what layer of the muscularis externa
In a parietal cell, HCO3 levels are ____ (high or low) inside the cell.
True or False: the primary function of the large intestine are reabsorption of electrolytes and water and elimination of undigested foods and wastes.
gastric juice is produced by
paneth cells secrete what enzyme?
_____ consists of only connective tissue and is found where the gi tract is directly attached to adjoining structures.

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