Digestion Flashcards

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0
Q

What are squamous cells

A

They are like scales

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1
Q

What is pseudostratified

A

It looks like more than one layer but it’s only one

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2
Q

What is digested in the mouth

A

Saliva contains salivary amylase to digest starch an lipase to digest fats

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3
Q

Is esophagus voluntary or involuntary

A

Top is voluntary which is why you can swallow but peristaltic action after is involuntary

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4
Q

Name the three gastric glands

A
  1. Mucous
  2. Chief cells
  3. Parietal cells
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5
Q

Chief cells secrete

A

Pepsinogen for proteins

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6
Q

Parietal cells secrete

A

HCl

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7
Q

Pyloric glands secrete

A

Gastronomic which induces more HCl and stomach mixing

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8
Q

Most digestion occurs in the

A

Duodenum

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9
Q

Pancreatic juice contains

A

Bicarbonate solution, pancreatic amylase, pancreatic peptidases (trypsinogen, chymotrypsinogen, and elastinogen), enterokinases activate trypsinogen to trypsin which activates all other, lipase

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10
Q

What is digested in the small intestine

A

Everything

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11
Q

What does enterokinase do

A

Activates trypsinogen to trypsin which activates all other enzymes

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12
Q

Where is bile produced and stored

A

Produced in the liver and stored in the pancreas

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13
Q

What causes bile to be released

A

CCK

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14
Q

pH of bile is

A

8.5

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15
Q

What does bile do

A

Emulsifiers fats and cholesterol into micelles

16
Q

Chyme in the duodenum purpose

A

Breaks down carbs and proteins

17
Q

How are simple sugars and amino acids absorbed into capillaries

A

Through facilitated diffusion and active transport

18
Q

Pathway of simple sugars into amino acids into blood circulation

A

Into capillaries and then to the liver and hepatic portal circulation

19
Q

How do small fats go into the the capillaries

A

Directly

20
Q

How do large fats get into the blood

A

Move into intestinal cells in small bits then reform into chylonicrons which enter lymphatic system through lacteals

21
Q

What’s the point of surfactant

A

A detergent that decreases surface tension and prevents collapse

22
Q

Is breathing autonomic or somatic

A

Breathing is autonomic but the diaphragm is somatic

23
Q

What surrounds the lungs

A

Plura

24
Q

Contracted diaphragm is

A

Flat

25
Q

Contracting the diaphragm and externalintercostal muscles lead to

A

Inspiration

26
Q

What in the brain causes ventilation

A

Controlled by neurons ventilation centers in the medulla oblongata, which is sensitive to the CO2 concentration in the body

27
Q

What monitors blood pH

A

Chemoteceptors on the neuron surface