Digestive System Human Bodies

Movement by the muscular components of the digestive tube, including processes of mechanical digestion (examples are peristalsis and segmentation)

• ingestion

• digestion

• motility

• elimination

Which primary mechanism of the digestive tract coordinates the digestive activity (motility, secretion, etc)?

• ingestion

• absorption

• elimination

• regulation

A rhythmic, wavelike contraction of the gut wall caused by repeating waves of ring-like contraction along the circular muscle of the muscularis layer is called:

• segmentation

• peristalsis

• serosa

• bolus

The serosa is the outer most covering of the digestive tube, and in the abdominal cavity, it is also called

• greater omentum

• mesentery

• visceral peritoneum

• parietal peritoneum

What structure prevents food and liquid from entering the nasal cavities?

• frendulum

• uvula

• epiglottis

• papillae

Alternating contraction of fibers of the muscularis within a single region of the GI tract that produces a 'back-and-forth' movement is called:

• segmentation

• peristalsis

• bolus

• ingestion

What structure of the tooth lines each tooth socket and anchors the tooth to bone?

• dentin

• root canal

• crown

• periodontal membrane

Which of our salivary glands is the largest?

(Hint: It secretes a solution containing NaHCO3 that helps neutralize bacterial acids)

• parotid gland

• submandibular gland

• sublingual gland

• thymus gland

The swallowing of a mass of chewed food is called

• ingestion

• deglutition

• bolus

• motility

Regulation of voluntary swallowing occurs in the cerebrum. Where does regulation of involuntary or impulse swallowing occur?

• cerebellum and pons

• cerebellum and medulla

• pons and medulla

• pons and midbrain