Chapter 15-1

Question 0

Name the movements of the alimentary canal

Answer 0

Mixing movements

Peristalsis

Question 1

Name four layers of the alimentary wall canal

Answer 1

Mucosa
Submucosa
Muscular
Serous

Question 2

Propelling movements in a wavelike motion

Answer 2

Peristalsis

Question 3

Tongues role is digestive process

Answer 3

Mixes food with saliva and moves food toward pharynx during swallowing

Question 4

Name the 3 tonsils

Answer 4

Lingual tonsils
Palatine tonsils
Pharyngeal tonsils

Question 5

Consists of hard anterior part and soft posterior part

Answer 5

Palate

Question 6

Soft projection that closes opening to nasal cavity during swallowing

Answer 6

Uvula

Question 7

Name the four teeth and their functions

Answer 7

Incisors-biting
Canines-tear food
Bicuspids-cut and chew
Molars-grind food

Question 8

Hardest substance in body which covers crown

Answer 8

Enamel

Question 9

Hard bonelike material that forms bulk of tooth

Answer 9

Dentin

Question 10

Contains blood vessels, nerves, and connective tissue

Answer 10

Pulp cavity

Question 11

Thin layer of bone like material that encloses root

Answer 11

Cementum

Question 12

Surrounds cementum and attaches tooth to jaw

Answer 12

Periodontal ligament

Question 13

Two main salivary secretions

Answer 13

Amylase

Mucus

Question 14

Digestive enzyme that digests starch

Answer 14

Amylase

Question 15

3 majors salivary glands

Answer 15

Parotid glands
Submandibular glands
Sublingual glands

Question 16

Name 3 parts of the pharynx

Answer 16

nasopharynx
Oropharynx
Laryngopharnx

Question 17

Describe the swallowing mechanism

Answer 17

Food is mixed w saliva and forced into pharynx

Involuntary reflex actions move food into the esophagus

Question 18

Food passageway from pharynx to stomach

Answer 18

Esophagus

Question 19

Circular muscle at end of pyloric canal that controls gastric emptying

Answer 19

Pyloric sphincter

Question 20

Folds on stomachs inner lining

Answer 20

Rugae

Question 21

3 gastric secretions and what they produce

Answer 21

Mucous cells produce mucus
Chief cells produce pepsin
Parietal cells produce HCL and intrinsic factor

Question 22

Name 3 phases of regulation of gastric secretion

Answer 22

Cephalic phase-sight, odor, or thought of food will start activity of gastric glands
Gastric phase-when food enters stomach, cells stimulate to produce gastrin which stimulate gastric juice production
Intestinal phase-begins with stimulus in intestine tract which causes a decrease in secretion of gastric juice

Question 23

Why can’t you absorb meal through stomach wall

Answer 23

Food hasn’t been digested enough to pass through stomach membrane

Question 24

What can get through stomach lining

Answer 24

Stomach can absorb water, glucose, salt, alcohol, and aspirin

Question 25

Semi fluid paste of food particles and gastric juice

Answer 25

Chyme

Question 26

Rate of emptying depends on what

Answer 26

Fluidity of chyme | Type of food

Question 27

Which kinds of food empty the quickest? Slowest?

Answer 27

Fastest-carbs | Slowest-fatty foods

Question 28

What do ulcers eat away at

Answer 28

The mucus membrane

Question 29

Hernia

Answer 29

Esophagus tube gets bigger and the gastric juices go up the tube and to the thoracic region and can cause heart burn