large intestine Flashcards
(11 cards)
what kind of epithelium is large intestine
simple columnar with few enterocytes, many goblet cells
muscularis inner longitudinal layer in man , horse and pig are modified to form bands called
teniae in cecum and colon
in the rectum the number of goblet cells
increase
in the rectum the serosa becomes
adventitia
in the rectum the circular layers of the musclaris are modified to form an
internal sphincter
which is surrounded by an external sphincter of skeletal muscle
skeletal muscle in the rectum
external sphincter
at what junction does the rectal muscoa change into cutaneous mucosa
recto-anal junction
anus in swine is divided into three regions
zona columnaris
zona intermedia
zona cutanea
what is at the junction between zone intermedia and zone cutanea
anal sacs, surrounded by apocrine sweat glands (perisaccular glands)
the perisaccular glands often accumulate in the anal sac and may become
a cause of acute pain in the dog (anal sac compaction)
circumanal glands (sweat and sabecous glands)tumor in older dogs is referred to as
hepatoid
