Respiration #2 Flashcards Preview

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Flashcards in Respiration #2 Deck (10):
1

What is minute alevolar ventilation?

amount of new air entering the alveoli each minute.

2

MAV=

rate (tidal volume. -dead space)

3

Minute Alevolar Ventilation at rest?

12 breaths per minute, TV=500 mL breath, dead space 150 mL

4

Minute Alevolar Ventilation during exercise?

50 breaths per minute, TV=3150 mL breath, dead space=150 mL

5

Obstructive Pulmonary Disorders

Airway resistance and expiration is difficult. (asthma, chronic obstructive pulmonary disease)

6

Asthma

Airway obstruction due to inflammation, mucous secretion, bronchoconsrtiction.
**This can be caused by allergies, exercise or infections.

7

Emphysema

This is a type of COPD
1. the alveolar tissue is destroyed
2. there isn't much room for gas exchange
3. bronchioles collapse
A cause of this is smoking.

8

Chronic Bronchitis

This is a type of COPD
1. inflammation in the lower airways
2 airways swell
3.mucous doesn't move because the cilia are damaged
a cause of this is smoking pollution, allergies

9

Restrictive Pulmonary Disorders

inspiration is difficult due to decreased compliance due to scar tissue build up.

10

How much energy is required for quiet breathing

requires 3% of total energy expenditure.