Digestive System Worksheet

Which is not a salivary gland?

• submandibular glands

• parotid gland

• maxillary gland

• sublingual glands

An enzyme that will digest proteins into polypeptides is _____________.

• trypsin

• lipase

• nuclease

• amylase

The functions occurring within the oral cavity include:

• analysis of material before swallowing and partial digestion of proteins and carbohydrates

• lubrication

• mechanical processing of food

• all of the above

Contraction of the __________ layer of the intestinal wall functions to change the shape of the intestinal lumen, causing peristalsis which moves food through the length of the intestines.

• submucosa

• mucosa

• serosa

• muscularis

An intestinal hormone that stimulates the gall bladder to release bile is _______________.

• cholecystokinin (CCK)

• gastrin

• secretin

• insulin

Secretions from the salivary glands _______________.

• all of the above

• help control bacterial populations in the mouth

• help lubricate

• are digestive enzymes

• B and C only

Which of the following is not a tissue layer of the alimentary canal?

• muscularis

• mucosa

• serosa

• secretin

Functions of the stomach include:

• mechanical breakdown of food

• all of the above

• initiation of protein digestion

• storage of recently ingested food

Waves of muscular contractions that propel the contents of the digestive tract from one point to another are .

• mastication

• segmentation

• peristalsis
• churning

Gastric pits are .

• located in the esophagus

• involved in the absorbtion of liquids from the stomach

• holes in the body of the stomach

• packets of the stomach lining that contain secreto