Lecture 9 Flashcards
Where is the thyroid cartilage of a cat
Where is the cricoid cartilage of a cat
where is the tracheal cartilages
definition of digestive system
alimentary canal and associated organs
what is the alimentary canal and what does it include
mouth to anus - tongue, teeth, salivary glands, pancreas, liver, gallbladder
where do substances enter the body
Substances enter body via mucous membrane of
alimentary canal
what is on the cats tongue
filiform papillae
function of filiform papillae
(don’t contain taste buds) and serve a mechanical function, primarily to increase friction between the tongue and food, aiding in food manipulation, chewing, and swallowing
what are filiform papillae made of
Keratinized stratified squamous
the ends of filiform papillae
Epithelium over papillae ends in
tapered points
Parallel rows, tips point backward
major salivary glands of the cat, and are they paired
parotid, submandibular, sublingual, they are all paired
what gland is red
what gland is orange
what are the functions of saliva
moisten oral mucosa, moisten food,
enzymes dissolve sugars (amylase), suspend food for tasting,
buffers, controls growth of some bacteria, source of calcium and
phosphate for tooth development, IgA
what are the three divisions of the stomach
cardia, fundus/body, pylorus
what are do the stomach glands secrete
pepsinogen, HCL, and mucus
what is the purpose of the secreted substances in the stomach
protein digested (no absorption)
what is the purpose of HCL
converts pepsinogen into pepsin
what do mucosa + submucosa do
form longitudinal folds called rugae, which flatten when the stomach is full
what is red
what is orange
what is yellow
what is green
what is the small intestine made of
duodenum, jejunum, ileum
what is the colon made of
ascending, transverse, descending
what is red
what is orange
what is yellow
what is green
what is blue
what is purple
what is pink
what is black
examples of increased surface area in the small intestine
Small intestine
with finger like villi
Increased Surface Area in Small Intestine for
Absorption
Epithelia of the small
intestine: microvilli
Ring-like folds (Plicae circulares):
most in the jejunum
Digestion and
absorption happens
in ___ in the small intestine
(enzymes present)!
duodenum
what does the pancreas secrete
amylases, trypsin,
chymotrypsin,
carboxypeptidases,
nucleases, lipases
what does the liver secrete
bile
what does the gallbladder do
stores bile
what occurs in the duodenum
digestion and absorption
pancreas function
Pancreas also produces
digestive enzymes as well as
insulin, glucagon, and other
hormones
liver function
Liver produces bile as well as
stores glycogen, produces
some hormones, detoxifies
blood, and more
hepatic portal vein
blood from digestive track (75% of blood
coming to liver, mostly deoxygenated)
hepatic artery
(25% of blood coming to liver, oxygenated)
blood Mixes in ___ before reaching ___, leaves via ___
vein to ___ vein
sinusoid, hepatocytes, central, sub-lobular
Hepatic triad
bile duct,
portal vein, hepatic arteriole
what is red
what is orange
what is yellow
what is green
what is blue
what type of gills do lampreys have
pouched gills
what type of gills do sharks have
septal gills
what is orange
what is yellow
what is green
what is blue
what is red
what is yellow
what is orange
what is green
is the primary tongue of a shark a true tongue
no
what is the papillae of a shark tongue for and where is it
Note papillae in
esophagus, not
for absorption
what is a role of a liver in shark
buoyancy
red
orange
yellow
green
blue
purple
pink
black
what does the spiral valve do in the valvular intestine
increases
surface area for
absorption
what is the digit form gland purpose
secrets salt into
the colon, role in
osmoregulation
who has a swim bladder
perch
how do lampreys reed
do lampreys have stomachs
no
red
orange
blue
liver
how can a lamprey breathe and eat at the same time
intestine of lamprey
