Digestive System

Question 1

also called gastrointestinal tract or gut

Answer 1

Alimentary Canal

Question 2

Continuous, coiled, hollow mascular tube that winds through the ventral body cavity from mouth to anus

Answer 2

Alimentary Canal

Question 3

organs in Alimentary Canal

Answer 3

Mouth, pharynx, esophagus, stomach, small intestine, and large intestines

Question 4

food enters the digestive tract through ___

Answer 4

mouth / oral cavity

Question 5

it protects the anterior opening if the mouth

Answer 5

Labia (lips)

Question 6

it forms the lateral walls of the mouth

Answer 6

cheeks

Question 7

it forms the anterior roof of the mouth

Answer 7

hard palate

Question 8

it forms the posterior roof of the mouth

Answer 8

soft palate

Question 9

fleshy fingerlike projection of the soft palate which dangles from the posterior edge of the soft palate

Answer 9

uvula

Question 10

the floor of the mouth

Answer 10

tongue

Question 11

from the mouth , food passes posteriorly into the orophrarynx and laryngopharynx, both of which are common passageways for food, fluids, and air.

Answer 11

Pharynx

Question 12

runs from the pharynx through the diaphragm to the stomach; about 25cm long ; passageway that conducts food by peristalsis to the stomach ; Gullet

Answer 12

Esophagus

Question 13

[walls of alimentary canal organs]

innermost; lines the hallow cavity, or lumen, of the organ

Answer 13

Mucosa

Question 14

[walls of alimentary canal organs]

found just beneath the mucosa

Answer 14

submucosa

Question 15

[walls of alimentary canal organs]

made up of an inner circular layer and an outer longitudinal layer of smooth muscle cells

Answer 15

Muscularis Externa

Question 16

[walls of alimentary canal organs]

outermost layer

Answer 16

Serosa

Question 17

located on the left side of the abdominal cavity

Answer 17

Stomach

Question 18

[regions of the stomach]

it surrounds the cardioesophalange sphincter

Answer 18

cardia

Question 19

[regions of the stomach]

expanded part of the stomach lateral to the cardial region

Answer 19

Fundus

Question 20

[regions of the stomach]

midportion if the stomach ; the convex lateral surface is the greater curvature, and it’s concave medial surface is lesser

Answer 20

body

Question 21

[regions of the stomach]

terminal part of the stomach

Answer 21

pylorus

Question 22

it acts as the temporary “storage tank” for food as well as a site for food breakdown

Answer 22

stomach

Question 23

its wall contains a third, obliquely arranged layer in the muscularis externa

Answer 23

stomach

Question 24

stomach produces a _____

Answer 24

protective layer of mucus

Question 25

stomach secretes ____

Answer 25

gastric juice

Question 26

it is the body’s major digestive organ

Answer 26

Small intestine

Question 27

small intestine extends from the ___ to the ____

Answer 27

from pyloric sphincter to the large intestines

Question 28

small intestine has an average length of _____

Answer 28

2-4m (7-13ft)

Question 29

three subdivisions of small intestine

Answer 29

1. Duodenum 2. Jejunum 3. Ileum