This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: accessory digestive organs o liver - produces bile >> emulsifies fat o gallbladder - stores/concentrates bile o pancreas- produces digestive enzymes, bicarbonate buffer in pancreatic suit tubular gastrointestinal tract o mucosa - innermost layer, circular orientation o lumen - inside of tract o submucosa - outside of mucosa, linear orientation o serosa - covers outside of tract o plexus - region where nerves concentrated ruminant digestion - uses 4-chamber stomach rumen - 1st chamber, contains smaller reticulum o protists/bacteria convert cellulose into simpler compounds o rumination - regurgitating food to rechew after entering rumen reswallowed food goes through reticulum to omasum to abomasum food mixed w/ gastric juice within abomasums cecum digestion - used by rodents, horses, deer, lagomorphs (rabbits/hares) digestion of cellulose in cecum regurgitation not possible >> rodents/lagomorphs eat feces to digest a 2nd time (caprophagy)...
View Full Document
- Fall '10