Lecture 9 Flashcards by Emma Davies

Q

Where is the thyroid cartilage of a cat

A

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Q

Where is the cricoid cartilage of a cat

A

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Q

where is the tracheal cartilages

A

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Q

definition of digestive system

A

alimentary canal and associated organs

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Q

what is the alimentary canal and what does it include

A

mouth to anus - tongue, teeth, salivary glands, pancreas, liver, gallbladder

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Q

where do substances enter the body

A

Substances enter body via mucous membrane of
alimentary canal

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Q

what is on the cats tongue

A

filiform papillae

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Q

function of filiform papillae

A

(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

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Q

what are filiform papillae made of

A

Keratinized stratified squamous

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Q

the ends of filiform papillae

A

Epithelium over papillae ends in
tapered points
Parallel rows, tips point backward

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Q

major salivary glands of the cat, and are they paired

A

parotid, submandibular, sublingual, they are all paired

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Q

what gland is red

A

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Q

what gland is orange

A

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Q

what are the functions of saliva

A

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

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Q

what are the three divisions of the stomach

A

cardia, fundus/body, pylorus

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Q

what are do the stomach glands secrete

A

pepsinogen, HCL, and mucus

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Q

what is the purpose of the secreted substances in the stomach

A

protein digested (no absorption)

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Q

what is the purpose of HCL

A

converts pepsinogen into pepsin

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Q

what do mucosa + submucosa do

A

form longitudinal folds called rugae, which flatten when the stomach is full

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Q

what is red

A

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Q

what is orange

A

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Q

what is yellow

A

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Q

what is green

A

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Q

A

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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