Digestive 1

hardlygraceful's version from 2015-05-19 21:47

Section 1

Question Answer
VilliFingerlike projections of mucosa
Plicae Circulares (Circular Folds)Circular folds of mucosa and submucosa
MicrovilliFolded, fingerlike projections of plasma membrane on apical surface of columnar epithelial cells
Intestinal GlandsInvaginations into mucosa between villi.
Submucusal GlandsCoiled tubular glands within submucosa with ducts opening into intestinal lumen.

Section 2

Question Answer
VilliIncrease surface area for both absorption and chemical digestion.
Plicae Circulares (Circular Folds)Slow down the passage of materials undergoing digestion; increase surface area for both absorption and chemical digestion.
MicrovilliIncrease surface area for both absorption and chemical digestion.
Intestinal GlandsIncrease surface area for both absorption and chemical digestion; enteroendocrine cells lining intestinal glands secrete digestive hormones.
Submucosal GlandsSecrete alkaline mucin to protect and lubricate lining of small intestine.

Section 3

Question Answer
Digestive OrgansPharynx, esophagus, stomach, proximal half of duodenum
Accessory Digestive OrgansMost of liver, gallbladder, biliary apparatus, pancreas
Other OrgansLungs
Digestive OrgnsDistal half of duodenum, jejunum, ileum, cecum, appendix, ascending colon, proximal two-thirds of transverse colon
Other OrgansUrinary bladder epithelium, urethra epithelium
Digestive OrgansDistal one third of transverse colon, descending colon, sigmoid colon, rectum, superior portion of anal canal.

Section 4

Question Answer
ParotidLargest of salivary glands, conducts secretions into the vestibule near upper 2nd molar
SubmandibularOpens lateral to lingual frenulum.
SublingualSmallest of salivary glands, located inferior to tongue, tiny sublingual ducts open into floor of oral cavity.
ParotidOnly serous secretions
SubmandibularBoth mucus and serous secretions
SublingualBoth mucus and serous secretions
Parotid25-30% of saliva produced
Submandibular60-70% of saliva produced
Sublingual3-5% of saliva produced