Gastrointestinal Continued.. Flashcards
body
middle section
pylorus
lower. small end
pyloric sphincter
seperates the stomach from the small intestines
the stomach has _ different layers
4
from internal to external, the four layers are
mucosa
submucosa
muscularis
serosa
smooth muscle of the stomach allow for
expansion, mixing, churning
gastric glands in mucosa…
secrete enzymes, mucin, and hydrochloric acid to continue the breaking down of food
stomach secretes
thick layers of mucus to protect it
chyme
partially digested semiliquid that is passed into small intestines
rugae
folds in the stomach that flatten as stomach expands
ruminant
animals that regurgitate and remasticate their food to allow for better digestion of cellulose
Food is fermented by ____ which helps produces more energy for the animal
bacteria and protozoa
food is swallowed, then
breakdown starts, regurgiated, and chewed again to allow for remastication
animals that have ruminant stomachs
cattle, sheep, goat, deer, and giraffes
cud
bolus containing fiber and other food particles, rumen liquid, and flora
stomach has __ chambers
4
names of chambers
rumen, reticulum, omasum, and abomasum
rumen
largest compartment (20% total animal weight) serves as a fermenting vat
reticulum
smallest part of the stomach, acts as a “filter” for heavy, dense feed and foreign objects
omasum
grind roughage and squeeze out fluid from ingestation
aboasum
“true stomach” that secretes digestive enzymes
hardware disease is caused when
animals may eat metal objects that get caught in the reticulum
possibility of hardware disease
these objects may pierce through the reticulum wall and into the heart
