A & P 2 L (Digestive pt 1)

1. DA

2. E

3. H

DA = digestive aid

E = enzyme

H = hormone

1. Parotid gland

   DA = Saliva + moisten food

   E = salivary amylase

1. Sublingual gland

2. Submandibular gland

   DA = saliva

   E = salivary amylase

1. Tongue

function = roll food into “bolus” + initiate swallowing

Teeth

1. Incisor

2. Canine

3. Premolars

Teeth

1. Incisor

2. Canine

3. Premolars

4. Molars

1. Esophagus

   function = transport food to the stomach (peristalsis - mechanical physical digestion)

Stomach

1. Cardiac sphincter (lower esophageal)

2. Body w/ Rugae (folds for expansion)

3. Pyloric sphincter

   DA = denature proteins

   E = pepsinogen (inactive) | pepsin (active)

   H = Gastrin

1. Pancreas

   DA = biocarbonate = neutralize HCI

   E = pancreatic amylase, trypsin, chymotrypsin, carboxypeptidase, lipase, DNase + RNase

1. Pancreatic duct

2. Hepatopancreatic sphincter (sphincter of oddi)

   *empties into duodenum of small intestine

1. Gallbladder - stores

   DA = bile = emulsification of lipids

2. Cystic duct

3. Hepatic duct - commands

4. Common bile duct

   *empties into duodenum

Liver (over 500 functions)

1. Bile duct - common

2. Hepatic portal vein

3. Hepatic artery

   DA = bile = emulsification of lipids

Small intestine

1. Duodenum - terminal digestion + absorption of nutrients

   H = CCK and secretin

   E = maltase, sucrase, lactase and diapeptidase

   mechanical/ physical = peristalsis & segmentation

Small intestine

2. Jejunum

3. Ileum

4. ileoceal valve - large intestine

1. Villi of muiosa layer - function = increase surface area

2. Submucosa layer

3. Circular muscle | muscularis layer | peristalsis + segmentation

4. Loagitudinal muscle | muscularis layer | peristalsis + segmentation

Large intestine

1. Cecum

2. Appendix

3. Ascending colon

4. Transverse colon

   function - defecation from feces, symbiotic bacteria = e. Colo, absorb h2o

   mechanical/physical - haustraul churning

Large intestine

1. Descending colon

2. Sigmoidal colon

3. Rectum w/ anus

Stomach

Small intestine

Liver lobule

Hepatic triad

Aciniceus of pancreas