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Anatomy Flashcards

(56 cards)

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1
Q

What determines air flow in and out of the thoracic cavity

A

Pressure gradient

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2
Q

Respiratory System - PNUR1195-25W-Sec4-Human Physiology

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3
Q

n.com/d2l/le/content/1347999/viewContent/28003766/View

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4
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A”:

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5
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  • +
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6
Q

Automatic Zoom

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7
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V

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8
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View as Text

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9
Q

Downloa

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10
Q

Respiratory System

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11
Q

PNUR1195

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12
Q

Functions of the Respiratory

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13
Q

…

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14
Q

ENG

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15
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US

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16
Q

Is insert

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17
Q

What is visceral fluid

A

a thin layer of fluid that lubricates the pleural space between the visceral and parietal pleura of the lungs. The visceral pleura is the inner layer of the pleura that covers the lungs

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18
Q

What is parietal fluid

A

is the outer layer that lines the chest wall.

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19
Q

What is the role of the pharynx

A

To conduct food to the esophagus and air to the larynx

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20
Q

What is the epiglottis

A

A flap of cartridge that covers the trachea during swallowing
Contains vocal cords

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21
Q

What are the nerves at the carina in the trachea?

A

Parasympathetic nerves (can cause a decrease in heart rate when touched/activated)

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22
Q

What is the carina

A

Where the trachea splits into 2 parts (the bronchi)

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23
Q

Do the bronchioles have cartilage?

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A

No, but the bronchi does (therefore the bronchioles are prone to collapse)

24
Q

What supports the bronchi?

25
What kind of muscle is in bronchioles?
Smooth muscle
26
What do bronchioles do with air flow?
It regulates the flow of air by changing diameter
27
What is the purpose of alveoli?
They are responsible for gas exchange (alveoli are ducts that arise from bronchioles)
28
What is between an artery and a vein
Capillary
29
How do gases move through the body?
By attaching to hemoglobin
30
What is the medulla oblongata?
Houses the respiratory control centre
31
What do inspiratory neurons do?
They fire to initiate breathing
32
What happens with inspiration in the lungs?
The muscles contract
33
What happens in expiration of the lungs?
Inspiratory neurons shut down
34
What does higher content of H in the body mean?
It’s more acidic
35
Does chemoreceptors in the Brain monitor oxygen?
No, carbon dioxide
36
What is the average % of oxygen tied to hemoglobin?
98%, the rest is “floating “ (in a reserve)
37
Arteries have the most amount of oxygen? True or false?
True
38
What percentage of sv02 is in the veins?
75%
39
What percentage of saturated 02 is in the arteries?
100%
40
What is tissue perfusion?
The passage of fluid though the circulatory system to an organ or tissue It refers to the delivery of blood to a capillary bed in tissue
41
What is the tidal volume? (normal breathing volume at rest)
500 ml
42
What percentage of blood is plasma?
55%
43
What’s in plasma?
Water Proteins Ions Nutrients Gases Wastes
44
What is the “red part of blood)?
Formed elements making up 45% of blood
45
What is the cellular components of blood?
Rbcs WBCs Platelets
46
What do erythrocytes (rbcs) do?
Transport gases Large Flexible Have no mitochondria or nucleus
47
What is hemoglobin?
Large protein Contains globin (carries carbon dioxide) and heme (carries o2) Require iron b12 and b9 (folic acid)
48
What is rbc production
Formation is driven by o2 levels When 02 is low, kidneys secrete erythropoietin Bone marrow increases Rbc production
49
What is a bruise?
Blood leaking into a tissue
50
What breaks down blood clotting?
Plasmin
51
What is an antigen?
A protein that may cause the production of antibodies
52
What is a antibiotic
Immunoglobulin that inactivates substances
53
What is agglutination
Clumping of cells together
54
What does hemolysis do?
Causes the destruction of erythrocytes
55
What is hematocrit?
% of blood cells in the sample
56
What is “Buffy coat”?
Layer of cells between plasma and formed elements

Anatomy and physiology (3 decks)

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