Chapter 23 - Digestive Flashcards Preview

A&P 2 TEST #3 > Chapter 23 - Digestive > Flashcards

Flashcards in Chapter 23 - Digestive Deck (31):
1

The two groups of organs in the digestive system?

Alimentary canal & accessory digestive organs

2

Function of the alimentary canal?

Digests & absorbs food

3

Accessory digestive organs

Teeth, tongue, gallbladder

4

Accessory digestive glands

salivary glands, liver, pancreas

5

What do accessory digestive glands do

Secrete enzymes into tube to help during absorption & digestion

6

What is peritoneum

Serous membrane of abdominal cavity

7

What are the peritoneum layers

Visceral peritoneum, peritoneal cavity, parietal peritoneum

8

What is mesentary? Its purpose?

Fat blanket wrapped around intestines to prevent them from tangling

9

What are peritoneal organs surrounded by?

peritoneum

10

What does retroperitoneal mean

Behind peritoneum

11

Name some retroperitoneal organs

Kidneys, part of duodenum, part of pancreas

12

Name blood supply arteries

Hepatic, splenic, left gastric
Inferior & superior mesenteric

13

When you combine all blood supply arteries they are called

Hepatic portal system

14

What does the hepatic portal system do

Helps take food parts to the liver

15

4 layers of the alimentary canal

Mucosa- simple columnar epi.
Submucosa- CT with 'landmarks'
Smooth muscle- peristalsis, involuntary, sometimes a double layer
Serosa- 'serran wrap' that holds it in place

16

What does the mucosa layer do

secretes mucus, enzymes, hormones & absorbs products

17

Long ANS fibers synapse with

enteric plexuses [ducts]

18

What do sympathetic impulses do

inhibit secretion/motility

19

What do parasympathetic impulses do

impulses the stimulate

20

The mouth is also known as the ____ cavity

buccal

21

What is the attachment of each lip to the gum called

labial frenulum

22

The hard palate consists of

maxilla & palatine bones

23

The soft palate consists of

fold of skeletal muscle; uvula projects down

24

Tongue's function

forms food bolus, swallowing is pt. vountary pt. involuntary

25

The surface of the tongue has

papillae

26

White part of tongue that makes it rough/provides friction

filiform

27

Red part scattered all over tongue

fungiform

28

V shaped part on back of the tongue

vallate

29

This part is on the sides of the tongue & is for food texture determination

Foliate

30

What enzymes in the saliva begin starch breakdown?

amylase [salivary]

31

What does amylase do?

Begins carb breakdown by turning polysaccharides into disaccharides & smaller polysaccharides