Digestive lec 2

Question 1

Oral cavity teeth

Answer 1

20 deciduous teeth (baby teeth 6-24m)
32 permanent teeth

Question 2

Incisors

Answer 2

chisel shaped for chopping

Question 3

Canines

Answer 3

fang like for rending flesh

Question 4

Premolars and Molars

Answer 4

grinding and crushing

Question 5

Crown

Answer 5

exposed portion of tooth above the gum (gingiva)

Question 6

Root

Answer 6

Embedded within bone of mandible and maxilla

Question 7

Salivary amylase

Answer 7

chemical digestion of starches

Question 8

Tongue

Answer 8

Intrinsic muscle change shape
Extrinsic muscle change position
aids in formation of bolus
involved in swallowing, speech, and taste

Question 9

Esophagus

Answer 9

tube from laryngopharynx to stomach
lined with stratified squamous epithelium

Question 10

2 phases of Deglutition

Answer 10

Buccal- voluntary contraction of tongue
Pharyngeal-esophageal- skeletal and smooth muscle contraction

Question 11

Goblet Cells

Answer 11

secrete mucus

Question 12

Parietal Cells

Answer 12

secrets HCI and intrinsic factor

Question 13

pepsin

Answer 13

enzyme that chemically digest protiens

Question 14

Intrinsic factor

Answer 14

B12 absorption in small intestine

Question 15

Enteroendocrine Cells

Answer 15

secrete gastrin (hormone)

Question 15

Cheif Cells

Answer 15

secrete pepsinogen, inactive form of pepsin

Question 16

Emesis

Answer 16

vomiting

Question 17

Chyme

Answer 17

food and gastric secretion