Ch 25 Lec 2 - Digestive System

Question 0

cutting teeth

Answer 0

incisors

Question 1

mechanical breakdown by teeth

Answer 1

mastication

Question 2

tearing teeth

Answer 2

cuspids

Question 3

crushing and grinding teeth

Answer 3

bicuspids and molars

Question 4

exposed region of tooth covered in enamel

Answer 4

crown

Question 5

base within host bone of tooth

Answer 5

root

Question 6

boundary between root and crown of tooth

Answer 6

neck

Question 7

gums are blank

Answer 7

gingiva

Question 8

hardest substance in body made of calcium salts

Answer 8

enamel

Question 9

inner mineral matrix of tooth

Answer 9

dentin

Question 10

bone like material covering root of tooth

Answer 10

cementum

Question 11

this ligament anchors tooth

Answer 11

periodontal

Question 12

spongy area with vessels and known as the root canal

Answer 12

pulp cavity

Question 13

primary teeth are replaced with blank teeth

Answer 13

deciduous

Question 14

there are blank primary or deciduous teeth

Answer 14

20

Question 15

secondary or permanent teeth have blank bicuspids and blank molars

Answer 15

2, 3

Question 16

there are blank total secondary or permanent teeth

Answer 16

32

Question 17

movement through the pharynx is enabled by blank

Answer 17

swallowing

Question 18

swallowing is known as blank

Answer 18

deglutition

Question 19

there are blank stages of swallowing

Answer 19

3

Question 20

stage of swallowing that compresses bolus against hard palate, elevates soft palate, and tongue retracts

Answer 20

buccal phase

Question 21

passageway for food to stomach

Answer 21

esophagus

Question 22

esophagus penetrates diaphragm through esophageal blank

Answer 22

hiatus

Question 23

three layers of esophagus

Answer 23

mucosa, muscularis, adventitia

Question 24

layer of esophagus that is stratified squamous

Answer 24

mucosa

Question 25

this is for storage and mechanical breakdown and chemical breakdown of protein

Answer 25

stomach

Question 26

stomach delivers blank to small intestine

Answer 26

chyme

Question 27

there is little absorption of nutrients in the blank

Answer 27

stomach

Question 28

stomach shape has a lesser and greater blank

Answer 28

curvature

Question 29

region of stomach that meets esophagus

Answer 29

cardia

Question 30

mucosa of stomach is folded into blank for expansion during a full stomach

Answer 30

rugae

Question 31

three muscle layers are in the blank of stomach

Answer 31

muscularis

Question 32

outer layer of stomach

Answer 32

longitudinal

Question 33

middle layer of muscularis of stomach

Answer 33

circular

Question 34

inner layer of muscularis of stomach

Answer 34

oblique

Question 35

these make gastric juice and secrete them

Answer 35

gastric glands

Question 36

secretory cell in stomach that makes HCl and intrinsic factor

Answer 36

parietal cells

Question 37

secretory cell of stomach that makes pepsinogen

Answer 37

chief cells

Question 38

this breaks down proteins

Answer 38

pepsinogens

Question 39

secretory cells that secrete the hormone gastrin

Answer 39

enteroendocrine cells

Question 40

three regions of small intestine

Answer 40

duodenum, jejenum, ileum

Question 41

shortest length of small intestine

Answer 41

25 cm

Question 42

longest part of small intestine

Answer 42

ileum

Question 43

this completes digestion of chyme and receives secretions from pancreas and liver

Answer 43

small intestine

Question 44

three parts of small intestine to increase surface area

Answer 44

plicae circulares, intestinal villi, microvilli

Question 45

folds in lining of small intestine

Answer 45

plicae circulares

Question 46

fingerlike projections of mucosa in small intestine

Answer 46

intestinal villi

Question 47

fingerlike extensions of cell membranes in small intestines

Answer 47

microvilli