Digestive System 2 Flashcards

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0
Q

3 pairs of salivary glands

A

Parotid- below ear
Submandibular- lower edge of mandible
Sublingual- floor of mouth

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1
Q

The 3 phases of digestion

A

Cephalic
Gastric
Intestinal

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2
Q

3 stages of swallowing

A

Voluntary
Pharyngeal (involuntary)
Esophageal

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3
Q

Functions of stomach

A
  • Mixing and holding area for food
  • Begins digestion of proteins
  • Continues carb digestion
  • Converts bolus into liquid chyme
  • Also absorbs some substances
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4
Q

Gastric digestion (mechanical)

A

Propulsion
Emptying
Retropulsion

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5
Q

Explain the term peristalsis

A

Contraction and relaxation of smooth muscles which propels contents through the digestive tract. It is wave contraction of longitudinal and circular muscles preceded by wave relaxation of these muscles.

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6
Q

Why does the anal cavity have a different kind of epithelium?

A

Stratified squamous epithelium is necessary to provide protection due to moving parts causing friction during defacation

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