Digestive System Practice

The act of mastication would be an example of _______________.

• mechanical digestion

• chemical digestion

• excretion

• absorption

This is a muscular organ in the mouth that helps position food to be chewed and pushes it back into the pharynx for swallowing.

• tongue

• uvula

• soft pallet

• teeth

If milk comes out your nose while laughing, then it got past your ________________.

• uvula

• hard pallet

• epiglottis

• pharynx

This thin mucous membrane attaches the tongue to the floor of the mouth.

• lingual frenulum

• papillae

• labial frenulum

• vestibule

This is a membrane-lined cavity behind the nose and mouth, sometimes referred to as the throat. It connects the mouth to the esophagus.

• papillae

• larynx

• pharynx

• vestibule

Chemical digestion of carbohydrates begins in the ________, whereas chemical digestion of proteins begins in the ________.

• Stomach; duodenum

• Oral cavity; duodenum

• Oral cavity; stomach

• Stomach; oral cavity

Which macromolecules does amylase begin to break down in the mouth?

• alcohol

• proteins

• carbohydrates

• fats

Which organ does the stomach empty into?

• Small intestine

• Large intestine

• Pancreas

• Liver

____________ is when smooth muscles involuntarily contract in a wavelike pattern to gently move food through the digestive tract.

• chyme

• peristalsis

• ulcer

• mastication

Which is the correct pathway that food takes through the alimentary canal?

• mouth, stomach, esphagus, small intestine, large intestine, rectum

• mouth, esophagus, stomach, small intestine, large intestine, rectum

• mouth, esophagus, small intestine, large intestine, stomach, rectum

• mouth, esophagus, stomach, large intestine, small intestine, rectum