GNRS 582 Week 5 Lecture Slides

gnrs-582-week-5-lecture-slides

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Question 1 of 1

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Order the path of travel of an air molecule being inhaled.

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Oropharynx
Capilary blood
Bronchioles
Body cells
Alveoli
Bronchi
Alveolar ducts
Nasopharynx
Trachea

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The larynx connects the upper airway and the lower airway and is important for vocalization.

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Gas exchange occurs at the alveolocapillary membrane.

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Surfactant is

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Explanation

Surfactant – a lipoprotein that coats the inner surface of the alveolus; lowers alveolar surface tension at end-expiration, thereby preventing lung collapse. Is produced by Type II alveolar cells.

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Gas exchange begins at respiratory bronchioles.

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The larynx connects the upper and lower airways.

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The respiratory regulation center is located in the

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Juxtapulmonary capillary receptors sense pulmonary capillary pressure; when increased, they stimulate rapid, shallow breathing, hypotension, and bradycardia

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Measurement and monitoring of pH and PaO2 is performed by

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Compliance is the same as elasticity of the lungs.

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Explanation

Compliance – the ease with which the lungs and chest wall expand during inspiration. Lung expansion is ensured by an adequate production of surfactant; chest wall expansion is dependent on elasticity.

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Ventilation=Diffusion

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Perfusion=Diffusion

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GNRS 582 Week 5 Lecture Slides

Question 1 of 1

Time Left

Order the path of travel of an air molecule being inhaled.

Match the text (click and drag)

(0/0)

1

2

3

4

5

6

7

8

9

Oropharynx

Capilary blood

Bronchioles

Body cells

Alveoli

Bronchi

Alveolar ducts

Nasopharynx

Trachea

The larynx connects the upper airway and the lower airway and is important for vocalization.

Select the correct answer(s).

(0/0)

Gas exchange occurs at the alveolocapillary membrane.

Select the correct answer(s).

(0/0)

Surfactant is

Select the correct answer(s).

(0/0)

Explanation

Gas exchange begins at respiratory bronchioles.

Select the correct answer(s).

(0/0)

The larynx connects the upper and lower airways.

Select the correct answer(s).

(0/0)

The respiratory regulation center is located in the

Select the correct answer(s).

(0/0)

Juxtapulmonary capillary receptors sense pulmonary capillary pressure; when increased, they stimulate rapid, shallow breathing, hypotension, and bradycardia

Select the correct answer(s).

(0/0)

Measurement and monitoring of pH and PaO2 is performed by

Select the correct answer(s).

(0/0)

Compliance is the same as elasticity of the lungs.

Select the correct answer(s).

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Explanation

Ventilation=Diffusion

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Perfusion=Diffusion

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Almost all of the oxygen that diffuses into pulmonary capillary blood is transported by hemoglobin.

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Plasma is unable to transport oxygen.

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Oxygen association and dissociation is driven by concentration gradient.

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