3.1: Digestive System Overview

Question 1

The human digestive organs can be divided into two main groups:

Answer 1

(1) those of the alimentary canal
(2) the accessory digestive organs.

Question 2

The alimentary canal is also called the ______.

Answer 2

gastrointestinal tract, or GI tract

Question 3

The ______ is a continuous muscular digestive tube beginning in the oral cavity.

Answer 3

alimentary canal

Question 4

What is the alimentary canal?

Answer 4

A continuous muscular digestive tube beginning in the oral cavity.

Question 5

True or False: It is only open at one end.

Answer 5

False. It is open at both ends, winding its way through the body cavity.

Question 6

The alimentary canal is composed of what parts?

Answer 6

mouth (oral cavity)
pharynx (throat)
esophagus
stomach
small intestine
large intestine
anus

Question 7

The accessory digestive organs include what parts?

Answer 7

teeth
tongue
gall bladder
salivary glands
liver
pancreas

Question 8

Answer 8

Upper alimentary canal (oral cavity and pharynx highlighted in blue)

Question 9

Answer 9

Anterior view of lower alimentary canal in context with accessory organs (pancreas and gall bladder). The stomach is highlighted in blue.

Question 10

Answer 10

Alimentary canal from the esophagus to the anus, with cross section view of the layers found in the alimentary canal

Question 11

Answer 11

Anterior view of the accessory organs: Liver, pancreas, and gall bladder. The stomach is removed to view the pancreas (which lies posterior to the stomach).