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Digestive > Guyton > Flashcards

Guyton Flashcards

1
Q

Peristaltism is stimulated by ____ and ____ but it requires a _____

A

Distension
Parasympathetic
Active myenteric plexus

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2
Q

What does prevent incontinence ?

A

-Internal anal sphincter (smooth muscles)
-External anal sphincter
(Striated voluntary muscles via pudendal nerve)

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3
Q

What is the mucus composed of ?

A

Water, electrolytes (bicarbonate and potassium), glycoproteins

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4
Q

What are the primary secretions of the salivary glands?

A

Ptyalin
Mucus
Extracellular fluid

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5
Q

Name the 3 phases of gastric secretion and their stimulation

A 
Cephalic (30%)
- vagus nerve
Gastric (60%)
- vasovagal réflexes and gastrin 
Intestinal (10%) 
- food in the upper GI tract
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6
Q

What pancreatic enzyme helps to digest proteins ?

A

Trypsin

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7
Q

What pancreatic enzyme helps to digest carbohydrates?

A

Amylase

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8
Q

What substances can break peptide linkage between amino acid?

A

Pepsin (stomach)
Pancreatic proteolytic enzymes (upper SI)
Peptidase (brush border)

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9
Q

What nutrients are absorbed via co transport with sodium ?

A

Glucose + galactose

Amino acid

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Digestive (5 decks)

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