ANP140 Lab 7 digestive system

Mucosa (GI tract layer)

Mucosa

contains Epithelial tissue

- faces the lumen of the GI tract

Submucosa (GI tract layer)

submucosa

Contain blood, lymph vessels, and submucosal nerve plexus

submucosal nerve plexus

regulates secretions

Muscularis externa (GI tract layer)

muscularis externa

circular muscle, myenteric plexus, longitudinal muscle

circular muscle funcation

narrowing motions

myenteric plexus

regulates motility

longitudinal muscle funcation

shortening motions

Serosa

thin outermost layer formed on visceral peritoneum

hard palate

oral cavity

tongue

teeth

sublingual gland

submandibular gland

parotid gland

soft palate

pharynx

Esophagus

liver

gallbladder

stomach

Pancreas

ascending colon

transverse colon

descending colon

small intestine

cecum

appendix

sigmoid colon

rectum

(A)

Anus

(L)

uvula

central incisor

lateral incisor

1st premolar

2nd premolar

1st molar

2nd molar

3rd molar

sublingual salivary gland

submandibular salivary gland

upper esophageal spincter

lower esophageal sphincter

cardiac stomach region

fundic stomach region

body stomach region

pyloric stomach region

lesser omentum

greater omentum

Duodenum

pyloric sphincter

longitudinal muscle

circular muscle

oblique muscle

gastric rugae

hepatic ducts

common hepatic duct

cystic duct

bile duct

pancreatic duct

hepatopancreatic sphincter

Jejunum

iieum

large intestine

illeocecal sphincter

intestinal villi

haustrum

external anal sphincter

internal anal sphincter

Stomach function

Food storage and protein digestion

Canines functions

Puncture, tear, shred food

small intestine function

digestion and absorption of nutrients

Gallbladder function

store bile

pancreas function

secretes bicarbonate and digestive enzymes

Greater and lesser omentum funcation

Keep abdominal organs in place and isolate infections

Villi and microvilli function

create surface area for absorbtion

pre molars/molars function

crushing and grinding food

liver function

produced bile

Incisors function

Biting food

Large intestine function

Absorption of water and products of bacterial metabolism

myenteric plexus function

regulates motility of GI tract

Submucosa function

contains blood and lymph vessels

circular muscle function

Narrow tract contractions

serosa function

outermost connective tissue layer

submucosal plexus function

regulates secretions in GI tract

Mucosa function

Contains epithelial tissue for absorption and secretion

muscularis externa function

Muscular layer of GI tract

Longitudinal muscle funcation

shorten GI tract with contractions

External anal sphincter function

regulate passage of feces from body

Pyloric sphincter function

Regulate flow of chyme from stomach to duodenumileo

ileocecal sphincter function

Between small and large intestine

lower esophageal sphincter function

prevents stomach contents from going back up

hepatopancreatic sphincter function

regulates flow of bile and pancreatic secretions into duodenum

upper esophageal sphincter

separtes pharynx from the esophagus

carbohydrates

monoscarrides

proteins

amino acids

fats

monoglycerides + 2 free fatty acids