Chapter 13 Digestion part 1 Flashcards Preview

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Flashcards in Chapter 13 Digestion part 1 Deck (87)
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1

break up food molecules into smaller molecules that can be absorbed

digestive system

2

physical break up by chewing, mixing, churning

mechanical digestion

3

enzymatic break up of material

chemical digestion

4

transport of material across gut wall into bloodstream

absorption

5

ball of food that is swallowed

bolus

6

continuous tube from mouth opening to anus/cloaca

digestive tract

7

three subdivisions of digestive tract

buccal cavity
pharynx
alimentary canal

8

chamber receiving alimentary canal and urogenital products

cloaca

9

opening separate for digestive tract

anus

10

examples of accessory digestive glands

salivary glands, pancreas, liver

11

oral opening to palatoglossal arch or fauces

buccal cavity

12

buccal cavity features

teeth
tongue
palate
cheeks

13

roof of buccal cavity

palate

14

fishes primary palate

ceiling with no openings

15

tetrapod primary palate

nasal passage openings

16

anterior secondary palate

hard palate

17

posterior secondary palate (mammals)

soft/fleshy palate

18

characteristics of teeth

unique to vertebrates
enamel capped
epidermal and meschymal contribution to form teeth
homology with denticles/scales of primitive fish

19

above gingiva

crown of tooth

20

below gingiva

base of tooth

21

base in socket/aveolus

root

22

site of blood vessels and nerves

apical foramen

23

hard, crown surface, and ameloblasts

enamel

24

under enamel/centenum

dentin

25

dentin is formed from

odontoblasts

26

root surface which has annular growth

cementum

27

connects root to aveolar bone of socket

periodontal ligament

28

all teeth same

homodont

29

teeth are different

herterodont

30

who doesn't have teeth

birds and turtles