Shared Flashcard Set

Details

Digestive Histology
Digestive histology
38
Histology
Professional
10/28/2012

Additional Histology Flashcards

 


 

Cards

Term
Brachydont teeth
Definition
Humans, dogs, cats, pigs (except tusks), incisors of ruminants
Term
Hypsadont teeth
Definition
horses, boar tusks, cheek teeth of ruminants, rodents
Term
brachydont crown and root
Definition

crown: enamal

root: cementum

Term
cementum
Definition
modified lamellar bone tissue
Term
Tastebuds that manipulate digestive material
Definition

filiform

 

conical

Term
tastebuds with taste receptors
Definition

fungiform


foliate

Term
Glands of von Ebner
Definition
release serous secretion into the depression surrounding circumvallate taste buds
Term
parotid salivary gland
Definition
serous
Term
sublingual salivary gland
Definition
mucous
Term
submandibular salivary gland
Definition
mixed (demilunes)
Term
secretion in a salivary gland
Definition

acinus --> intralobular duct --> larger ducts --> interlobular and primary ducts


As the ducts get larger, the epithelium becomes columnar and may be striated

Term
Layers of tubular organs
Definition

Tunica mucosa (lamina epithilalis, lamina propria, lamina muscularis)

Tunica submucosa

Tunica muscularis

Term
Tunica mucosa in esophagus
Definition
lamina epitithelialis: stratified squamous, keratinized in herbivores
lamina propria: collagen fibers, capillaries, lymphatics
lamina muscularis: longitudinal smooth muscles
Term
tunica submucosa in esophagus
Definition

loose CT (mucosal folds)

mucous glands in most species but horses and cats

lymphoid nodules

Term
tunica muscularis
Definition

skeletal muscle (anterior) --> smooth towards stomach

 

dogs and ruminants skeletal throughout

Term
Tunica mucosa of stomach
Definition

lamina epithilialis (simple columnar, surface mucous cells)
lamina propria contains MANY cells and tubular lgands

stratum compactum

 lamina muscularis mucosae

Term

stratum compactum

 
Definition
layer of dense connective tissue at junction of lamina propria and muscularis mucosae
Term
meisners plexus
Definition
tunica submucosa in stomach; innervates lamina muscularis
Term
tunica muscularis
Definition

2 layers of smooth muscle

 

Auberch's plexus

Term
parietal cells
Definition
secrete HCL
Term
chief cells
Definition

secrete pepsinogen --> pepsin with acid

 

basophilic

Term
neck mucous cells
Definition
precursers of surface mucous cells
Term
Plicae circulares ( = valves of Kerckring) are permanent crescent shaped folds that involve mucosa and submucosa.
Definition
are permanent crescent shaped folds that involve mucosa and submucosa of small intestine
Term
Villi
Definition

small intestine - folds of lamina epithelialis and lamina propria (of tunica mucosa) project about 1 mm


simple columnar


contains absorbtive cells (enterocytes, goblet cells, and neuroendocrine cells)

Term
Microvilli
Definition
 microscopic projections of apical plasma membrane of epithelial absorptive cells
Term
crypts
Definition
invagintions in small intestine, extend into lamina muscularis mucosae of tunica mucosa
Term
lobules of liver
Definition

hexagonal arrangement of hepatocytes around a central vein which drains blood from sinusoids that mix blood from portal vein with blood from hepatic artery

 

 

Term
corner of each lobule
Definition

hepatic canal



contains branch of portal vein, hepatic artery, lymph vessles, interlobular bile ductules

Term
kupffer cells
Definition
macrophages residing in liver sinusoids
Term
space of Disse
Definition
space between the endothelial cell of the sinusoid and the parenchymal cells in liver
Term
direction of bile, blood, lymph
Definition

bile opposite blood

 

lymph opposite blood

Term
pancreas beta cells
Definition
insulin
Term
pancreas aplpha cells
Definition
glucagon
Term
pancreas delta cells
Definition
somatostatin
Supporting users have an ad free experience!