Physiology 2 Flashcards
1
Q
Accessory muscles of inspiration
A
Sternocleidomastoid
2
Q
Major muscles of inspiration
A
External intercostal muscles
Diaphragm
3
Q
Muscles of active expiration
A
Internal intercostal muscles
Abdominal muscles
4
Q
Primary determinant of airway resistance
A
Radius of conducting airway
5
Q
Pulmonary compliance
A
The less compliant the lungs are, the more work is required to produce a given degree of inflation
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)
7
Q
How much energy required for breathing?
A
3%
