Chapter 8 Part 1

Front 1

Ingestion:

Back 1

when the mouth takes in food.

Front 2

Digestion:

Back 2

Involves the breakdown of larger pieces of food into smaller pieces that can be acted on by the digestive enzymes.

Front 3

Movement Peristalsis:

Back 3

Food must be passed along from one organ to the next, normally by contractions of smooth muscle tissue called peristalsis, and indigestible remains must be expelled.

Front 4

Absorption:

Back 4

Occurs as subunit molecules produced by chemical digestion (i.e. nutrients) cross the wall of the GI tract and enter the cells lining the tract

Front 5

Elimination

Back 5

: removes molecules that cannot be digested and need to be discharged from the body.

Front 6

Mouth

Back 6

receives food and begins the process of mechanical ad chemical digestion.

Front 7

Uvula

Back 7

A fleshy extension at the back of the soft palate that hangs above the throat.

Front 8

Salivary Glands

Back 8

secrete saliva by way of ducts to the mouth.

Front 9

Deciduous teeth:

Back 9

Baby teeth

Front 10

Wisdom teeth

Back 10

each of the four hindmost molars in humans

Front 11

Lumen

Back 11

open area of digestive tract

Front 12

Mucosa

Back 12

1st layer next to lumen; produces mucus for protection; release digestive enzymes and hydrochloric acid.

Front 13

Submucosa

Back 13

2nd layer; broad band of loose connective tissue; contains blood vessels, lymphatic vessels and nerves; help prevent disease

Front 14

Muscularis:

Back 14

3rd layer; 2 layers of smooth muscle; performs peristalsis

Front 15

Appendix

Back 15

a tube-shaped sac attached to and opening into the lower end of the large intestine in humans and some other mammals.

Front 16

Diverticulosis:

Back 16

mucosa pushes through other layers and make pouches