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What are basic functions of the digestive system?

Elimination Ingestion Absorption Mastication Digestion

Identify the structures of the digestive tract that are lined with stratified squamous epithelium.

Esophagus Oropharynx Mouth Anal canal

The process of chewing is called

Mastication

Which of the following movements of the digestive tract will help to propel food from one end of the digestive tract to the other?

-Mass movements -Deglutition -Peristalsis

The muscularis of the stomach consists of Blank______ layers.

3

Name the outermost or most superficial layer of the organs in the digestive tract.

Adventitia Serosa

Which of the following movements of the digestive tract will help to propel food from one end of the digestive tract to the other?

Mass movements Peristalsis Deglutition

The enteric nervous system contains Blank______ neurons than the spinal cord

More

Which secretion protects the epithelial cells of the digestive tract from abrasion and digestive enzymes?

Mucous

Which structure separates the oral cavity from the nasal cavity?

PALATE

Mixing contractions in the small intestine are called contractions.

Segmental

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

Serous fluid

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

Smooth muscle

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

Smoth muscle

"Connective tissue sheets composed of two layers of serous membranes with a thin layer of loose connective tissue between them" best describes

mesenteries

The innermost layer of the digestive tract is called the

mucosa

Segmental contractions are mixing contractions that occur predominately in the

small intestine

Typically acetylcholine and serotonin Blank______ digestive tract activity and norepinephrine Blank______ digestive tract activity.

stimulate; inhibit

Feces are eliminated from the body by the process of

Defecation

Segmental contractions are mixing contractions that occur predominately in the

Small intestine

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

Deglutition

Correctly pair each basic function of the digestive system with the correct description.

Digestion-Breakdown of large organic molecules into their component parts -Mastication-Process by which teeth break food into smaller particles to increase the total surface area Ingestion- The intake of solid or liquid food into the stomach Propulsion-Movement of food from one end of the digestive tract to the other Absorption-Movement of molecules from the digestive tract into the circulation or lymphatic system

The vestibule of the oral cavity is the space between the teeth and

cheeks

The submucosa consists of Blank______ tissue.

connective

The elimination of semi-solid waste products from the body is called

defecation

The majority of nervous stimulation of the digestive system comes from the

enteric nervous system

Acetylcholine, norepinephrine and serotonin are Blank______ that affect digestive tract Blank______.

neurotransmitters, motility

The epithelium that lines the esophagus is

nonkeratinized

A potentially life-threatening inflammation of the peritoneum is called

peritonitis

Mixing contractions that occur in the small intestine are called

segmental contractions

The layer of the digestive tract that consists of connective tissue containing nerves, blood vessels, lymphatic vessels, small glands, and a network of nerve cells is the

submucosa


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