Functions of GI tract Flashcards

1
Q

Describe the basic function of the oral cavity

A
  • receives food
  • chews food
  • starts digestion
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2
Q

Describe the basic function of the salivary glands

A

-produces saliva & enzymes

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3
Q

Describe the basic function of the oesophagus

A

-swallows food

squamous epithelium, submucous glands

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4
Q

Describe the basic function of the stomach

A

-digests food

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5
Q

Describe the basic function of the intestines

A
  • digests food
  • absorbs food
  • absorbs water
  • resists bugs

mucosa - highly folded

  • vili have smaller folds
  • microvili (SA for absorption)

lamina propia - rich vascular system

contains - endocrine cells, smooth muscle, ganglion cells, interstitial cells of cajal

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6
Q

What do parietal cells secrete?

A

HCL

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7
Q

What do chief cells secrete?

A

Pepsinogen

lipase

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8
Q

Describe the basic function of the duodenum

A
  • digests food
  • absorbs food
  • resists bugs
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9
Q

Describe the basic function of the intestines

A
  • digests food
  • absorbs food
  • resists bugs
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10
Q

Describe the basic function of the colon

A
  • digests food
  • absorbs food
  • resists bugs
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11
Q

describe the parts of GI tract

A

oral cavity, oseophagus, stomach, duodenum, jejunum, ileum, large intestine/colon (ascending, transverse, decesending)

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