{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Digestive II - Digestive II A Stomach 1 Four basic areas a...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Digestive II A. Stomach 1. Four basic areas a. cardia- portion of stomach just below lower esophageal sphincter b. fundus- dome shaped, in contact with diaphragm, upper part c. body- large central portion of the d. pylorus- terminal portion, funnel shaped, ends at pyloric sphincter 2. Rugae- folds for stomach to expand
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
3. Stomach content a. gastric juices - water - pepsin (breaks down protein) - HCl (pH 1-3) - acid chime (half-digested food, consistency of pea soup, this is churned in stomach) - gastrin- hormone that travels through blood from pylorus to cells in upper stomach to produce pepsinogen (which when comes in contract with gastric juice is activated into pepsin) - mucus (protects stomach walls) b. takes 2-6 hours to digest c. Carbs are easiest, then proteins, then lipids are hardest d. Helicobacter pylori- ulcers, fecal to oral is how you get it - white blood cells phagocytize stomach cells with Helicobacter pylori (causes holes(ulcers)) 4. Pyloric sphincter B. Small Intestine 1. Digestion and absorption- most occurs here 2. Areas
Background image of page 2
a. duodenum- 10’’ long, pancreas covers it, digestion occurs here
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}