Organ Histo Final Flashcards
what type of epithelium is found on filiform papillae?
-keratinized stratified squamous
What type of epithelium is found on all other papillae?
–stratified squamous
Von Ebner glands are found with ____ tongue papillae
–vallate
Taste buds are NOT found on which tongue papillae?
–filiform
What do the intrinsic tongue muscles do?
change the shape of the tongue
Which cells produce dentin?
-odontoblasts
Which cells produce enamel?
–ameloblasts
Which cell type will persist in adults?
-odontoblasts
Enamel is produced by which type of cells?
ameloblasts
Name the area of CT beneath the odontoblasts.
dental papilla
Which salivary gland lacks separate serous acini?
–sublingual
Which salivary gland is the largest?
–parotid
Which salivary gland produces a mixed product but is primarily serous producing?
–submandibular
Which salivary gland produces a mixed product but is primarily mucous producing?
–sublingual
Which salivary gland is 100% serous producing?
–parotid
Which salivary glands have serous demilunes?
sublingual & submandibular
Which major luminal wall layer will typically possess larger blood vessels & more fibrous CT?
–submucosa
Which sublayer of the mucosa will typically possess smaller blood vessels & looser CT?
–Lamina Propria
What does it mean if the muscularis external has “normal pattern”?
inner circular & outer longitudinal muscle layers
Which type of covering does an organ possess if it can be described as an edge of serous
producing simple squamous epithelium?
–serosa
Nam the surface epithelim of the espophagus?
stratified squamous
Name the surface epithelium of the stomach?
simple columnar
Stomach Review
Stomach Review
Identify the stomach cell that produces:
-intrinsic factor:
parietal
thick visible mucus:
surface mucous
-pesinogen:
chief
-HCL
parietal
a more soluble slightly acidic mucus (less alkaline):
neck mucous
-gastrin
DNES Type G cell
-gastic lipase:
chief
Which layer of muscle within the muscularis externa is not always present?
oblique
Name the surface epithelium of the stomach.
simple columnar
What are lacteals?
lymphatic capillaries
where are paneth cells found and what do they do?
bases of crypts; produce lysozyme
Where are brunners glands found?
what do they do and why?
submucosa of duodenum;
secrete alkaline mucus to neutralize chyme
Where are lacteals found?
Why are they important?
lamina propria of small intestinal villi;
absorption of most fats
What is unique about the Submucosa of the ileum?
contains Peyers patches
Which luminal wall layer is influenced by the submucosal plexus?
mucosa
Does the muscularis externa of the small intestines have a normal pattern?
yes
What does normal patterned to a muscularis externa mean?
inner circular, outer longitudinal
muscle layers
Which type of covering does the duodenum have next to (outside) its muscularis externa?
some
serosa but mostly adventitia
Name the surface epithelium of the vermiform appendix?
simple columnar
Name the surface epithelium of the colon?
simple columnar
Does the appendix have villi?
no
What layer is found covering the muscularis externa of the transverse colon?
serosa
Name the surface epithelium of the gallbladder…
simple columnar
Which major luminal wall layer is significantly absent?
submucosa
does the muscularis externa of the gallbladder have normal pattern?
no
which major portion of the pancreas is the largest?
exocrine
which pancreatic cells help to buffer chyme?
centroacinar & cuboid in the pancreatic
intercalated ducts
what material is extra thick on the outside of the pancreatic ducts?
collagen I
Which cell types stores vitamin A?
Ito Cells (hepatic stellate cells)
Which cell is the resident macrophage within the liver?
Kupffer cells (stellate macrophages)
Which cell performs most liver functions?
hepatocytes
Which structure enables blood to directly contact liver cells?
space of disse (perisinusoidal
space)
