Digestive System- Unit 4

Question 1

Alimentary Canal

Answer 1

Mouth, pharynx, esophagus, stomach, intestines

Question 2

Accessory digestive organs

Answer 2

Liver, teeth, tongue, gallbladder, pancreas, salivary glands

Question 3

Mucosa associates lymphatic tissue

Answer 3

Tissue that contains pockets of immune cells for mucous membranes

Question 4

Aggregated lymphoid nodules locations

Answer 4

Palatine- oropharynx
Pharyngeal- nasopharynx
Lingual- base of tongue

Question 5

Mucosa

Answer 5

First layer.
Epithelium
Lamina propria (areolar ct)
Muscularis mucosa (smooth m)

Question 6

Change in epithelium of mucosa along alimentary canal

Answer 6

Strat sq
Simple col
Strat sq
(Lamina propria and Muscularis mucosa stay same)

Question 7

Submucosa

Answer 7

Second layer.
Contains glands, enteric nerve plexus, blood supply, made of DICT

Question 8

Serosa

Answer 8

Fourth Layer.
Peritoneum

Question 9

Muscularis Externa

Answer 9

Third Layer.
Circular layer
Longitudinal layer (smooth muscle, does peristalsis and segmentation)

Question 10

Mastication and Deglutition

Answer 10

Chewing and swallowing

Question 11

Peristalsis

Answer 11

Segments being mixed up (musc externa long layer)

Question 12

Predominant digestive enzyme in saliva

Answer 12

Salivary amylase (digests carbohydrates)

and lipase

Question 13

Which tongue papillae don’t have tastebuds

Answer 13

Filiform, highly keratinized

Question 14

Which tongue papillae have tastebuds

Answer 14

Fungiform, Circumvallate, Foliate

Question 15

Deciduous teeth

Answer 15

Baby teeth

Question 16

Teeth purposes and numbers

Answer 16

Incisors- Stripping (2, 2)
Canines/cuspids- Tearing (1, 1)
Premolars/bicuspids- Shearing (0, 2)
Molars/tricuspids- Grinding (2, 3)

Question 17

Enamel vs Bone

Answer 17

Enamel is all CaPO4, bones have collagen

Question 18

Labial frenulae

Answer 18

bridge between gums and lips

Question 19

top of tongue is called

Answer 19

Dorsum

Question 20

gums are called

Answer 20

Gingiva