Alimentary Canal Wall Flashcards

1
Q

Mucosa

A
  • innermost mucous membrane layer
  • produces and releases secretions needed for digestion
  • lymphoid tissue protects the body
  • lubricate + release mucus
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2
Q

Submucosa

A
  • connective tissue
  • contains blood vessels, lymphatic vessels, nerves, and lymphoid tissue
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3
Q

Muscularis externa

A
  • two layers of smooth muscles (longitudinal muscle and circular muscle)
  • responsible for GI motility
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4
Q

Serosa

A
  • connective tissue
  • outer cover that protects the GI tract
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5
Q

Order

A

Innermost = lumen
mucosa
submucosa
muscularis externa
serosa

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