Physiology 2 Flashcards

1
Q

Accessory muscles of inspiration

A

Sternocleidomastoid

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2
Q

Major muscles of inspiration

A

External intercostal muscles

Diaphragm

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3
Q

Muscles of active expiration

A

Internal intercostal muscles

Abdominal muscles

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4
Q

Primary determinant of airway resistance

A

Radius of conducting airway

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5
Q

Pulmonary compliance

A

The less compliant the lungs are, the more work is required to produce a given degree of inflation

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6
Q

Decreased/increased compliance

A

Decreased compliance = have to work harder to get air into the lungs
Increased compliance = have to work harder to get air out of the lungs (e/g/ emphysema)

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7
Q

How much energy required for breathing?

A

3%

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