Digestive System

Front 1

GI tract
alimentary canal

Back 1

continuous tube from mouth to anus and includes: mouth, pharynx, esophagus, stomach, small intestine, large intestine

Front 2

accessory digestive organs

Back 2

teeth, tongue, salivary glands, liver, gallbladder, pancreas

Front 3

6 functions of digestive system

Back 3

1. Ingestion
2. Secretion
3. Mixing and propulsion
4. Digestion - mechanical and chemical
5. Absorption
6. Defication

Front 4

Chemical digestion

Back 4

carbs, lipids, proteins, nucleic acids are split by hydrolysis - others that avoid chemical digestion are vitamins, cholesterol and water

Front 5

Mucosa

Back 5

inner lining of GI tract
1. epithelium
2. connective tissue called lamina propia
3. smooth muscle called muscularis mucosae

Front 6

Epithelium

Back 6

mouth phyarynx,esophagous, and anal is nonkeratinised stratified squamous epithelium and serves a protective function
2. simple columnar epithelium - stomach and intestines

Front 7

Enteroendocrine cells

Back 7

located among the epithelial cells are exocrine cells that secrete mucus and fluid and secrete hormones

Front 8

lamina propria

Back 8

areolar connective tissue supports epithelium and binds to muscularis mucosae

Front 9

MALT

Back 9

contain immune system cells and present along GI tract

Front 10

muscularis mucosae

Back 10

throws the mucous membrane of the stomach and small intestine into many small folds which increase surface area

Front 11

Submucosa

Back 11

areolar connective tissue that binds the mucosa to muscularis - contains extensive network of neurons

Front 12

muscularis

Back 12

mouth pharynx and superior and middle esophagus contains skeletal muscle, the rest is smooth muscles found in two sheets

Front 13

serosa

Back 13

portions ofthe gi tract that are suspended in the abdominopelivic cavity

Front 14

Enteric nervous system

Back 14

the brain of the gut

Front 15

myenteric plexus

Back 15

located between longitudinal and circular smooth muscle layers of the muscularis

Front 16

submucosal plexus

Back 16

plexus of Meissner, motor neurons, interneurons and sensory neurons

Front 17

peritoneum

Back 17

largest serous membrane of the body, layer of simple squamous epithelium with underlying layer of areolar connective tissue

Front 18

parietal peritoneum

Back 18

lines the wall of the abdominopelivic cavity

Front 19

visceral peritoneum

Back 19

covers some of the organs in the cavity

Front 20

ascites

Back 20

perionela cavity may become distended with accumulation of fluid