Digestive System Anatomy Test

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

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

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

• chyme

• peristalsis

• ulcer

• mastication

What does mucus do?

• Digests food in the mouth

• Digests food in the stomach

• Protects the stomach from digesting itself

• Absorbs nutrients from food so the body has energy

What separates the esophagus from the stomach?

• lower esophageal sphincter

• pyloric sphincter

• ileocecal sphincter

• upper esophageal sphincter

What digestive enzyme that is found in the stomach begins the digestion of proteins?

• Amylase

• Pepsin

• Lipase

• Rennin