CH 24 PR 24.1-24.3

Which of the following are functions of the digestive tract? Select all that apply.

Absorb electrolytes Digest food Absorb water

Match each movement of the digestive tract with the correct description.

Deglutition= Moves a mass of food or liquid from the oral cavity to the esophagus Mass Movements.= Forcible movements that move the contents of the large intestines Peristalsis= Muscular contractions consisting of a wave of relaxation of circular muscles followed by a wave of contraction of circular muscles Segmental contractions= Muscular contractions that move food back and forth within the digestive tract to mix it with digestive secretions

Match each basic secretion of the digestive tract with the correct function.

Enzymes= Break down large food molecules into smaller food molecules to promote absorption Mucus= Lubricates food and protects lining of the digestive tract Water= Liquefies foodLiquefies food

Identify the organs of the digestive system that are considered accessory organs. Select all that apply.

Liver Salivary glands Gall bladder Pancreas

Which of the following movements of the digestive tract will help to propel food from one end of the digestive tract to the other? Select all that apply.

Mass movements Deglutition Peristalsis

Name the layers of the mucosa. Select all that apply.

Mucous epithelium Lamina propria Muscularis mucosae

Which of the following functions to mix food with digestive secretions?

Segmental contractions

Name the outermost or most superficial layer of the organs in the digestive tract. Select all that apply.

Serosa Adventitia

What are feces?

The semi-solid waste products eliminated from the body

The two major divisions of the digestive system include the digestive tract and the BLANK organs.

accessory

Salivary glands secrete saliva into the mouth; they are ______ of the digestive system.

accessory organs

Feces are eliminated from the body by the process of

defecation

Identify the process that moves a bolus from the oral cavity into the esophagus.

deglutition

The process that moves a bolus from the oral cavity into the esophagus is called swallowing or

deglutition

The system specialized to ingest food, digest food and absorb water, electrolytes and nutrients is the BLANK system.

digestive

The regions of the digestive tract from beginning to end include the mouth, pharynx, BLANK, stomach, BLANK, , large intestine and anus.

esophagus; small intestine

The alimentary canal or tract is also know as the BLANK tract

gastrointestinal

The digestive tract is also known as the BLANK canal or tract

gastrointestinal

The process of chewing is called

mastication

The tunic of the digestive tract that forms its lining is the _____.

mucosa

List the tunics of the digestive tract from the inside to the outside.

mucosa; submucosa; muscularis; serosa

Identify the layers of the mucosa from inside to outside.

mucous epithelium lamina propria muscularis mucosa

The adventitia or BLANK is the outermost layer of structures in the digestive system.

serosa

Which of the following is NOT one of the major digestive secretions?

serous fluid

Segmental contractions are mixing contractions that occur predominately in the _____.

small intestine

What muscle type makes up most of the muscularis of the gastrointestinal tract?

smooth

The BLANK plexus is the network of nerve cells in the submucosa that regulates intestinal secretions.

submucosal

Mastication is the _____.

the process of mechanically braking down food.

Digestion includes BLANK digestion, which involves mastication and mixing of food and BLANK digestion, which is accomplished by digestive enzymes.

mechanical; chemical