Science Quiz / GI Tract Histology

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

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

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