Gastrointestinal System Flashcards Preview

Biology 101 > Gastrointestinal System > Flashcards

Flashcards in Gastrointestinal System Deck (35)
1

Mouth

also known as the oral or buccal cavity

2

Esophagus

25 cm long 10-30 mm diameter
Peristalsis begins

3

openings of the stomach

cardiac orfice and pyloric orfice

4

regions of the stomach

cardi, fundus, body, pylorus

5

small intestine

duodenum, jejunum, ileum

6

duodenum

25 cm long, starts at pyloric
sphincter of stomach

7

jejunum

3 feet in length
extends to the ileum

8

ileum

distal portion of the small bowel
6 feet in length
joins the large intestine at the ilocecal valve

9

large intestine

cecum, ascending colon, hepatic flexure, transverse colon, splenic flexure, descending colon,sigmoid colon, rectum/anal cana

10

cecum

small pouch portion of intestine below the junction of the ileum and the colon approximately 2.5 inches in length and 3 inches in diamter

11

ascending colon

ascends on the right of the abdomen

12

hepatic flexure

ascending colon truns abruptly

13

transverse colon

continues across the abdomen

14

splenic flexure

curves beneath the inferior end of the spleen

15

descending colon

passes inferiorly to the level of the iliac crest

16

sigmoid colon

S shaped begins at the left iliac crest and terminates at the rectum

17

rectum/anal canal

the last 8 inches of the iliac tract which lies anterior to the sacrum and coccyx

18

accessory organs

teeth, tongue, salivary glands, liver, gall bladder, pancreas,

19

teeth

aid in the physical breakdown of food
located in the sockets of the alveolar processes

20

tongue

composed of skeletal muscle covered with mucous membrane
forms the floor of the oral cavity

21

salivary glands

parotid gland, submandibular gland, sublingual gland

22

parotid glands

largest of the salivary glands

23

submandibular gland

irregularly shaped glands; extends posteriorly from a point below the first molar also to the angle of the mandible

24

sublingual gland

smallest pair of glands located beneath the sublingual fold

25

liver

largest gland in the body
stores and filters blood
detoxifies harmful compounds
produces bile

26

gall bladder

reservior for bile

27

pancreas (endocrine)

isles of langerhans
produce insulin

28

pancreas (exocirne)

secretes the juices that aid in digestion
helps break down fats, proteins, and carbs

29

ductal systems

right and left hepatic ducts, common hepatic duct, cystic duct, common bile duct, pacreatic duct, ampullar of vater

30

right and left hepatic ducts

merging of bile ducts

31

common hepatic duct

hepatic ducts unite

32

cystic duct

joins the common hepatic duct at the gallbladder

33

common bile duct

common hepatic and cystic ducts

34

pancreatic duct

joins the common bild duct from the liver

35

ampulla of vater

dilated common duct formed by pancreatic and common bile duct (holding cell)