Physiology Flashcards
1
Q
What are the accessory muscles of inspiration?
A
Scalene muscles
Sternomastoid muscles
Pectoris Major( sometimes)
2
Q
What is the function of these accessory muscles?
A
Scalene Muscles- Elevate the first 2 ribs
Sternomastoid elevate the sternum
3
Q
What is the most important muscle for Inspiration?
A
Diaphragm
4
Q
What are the most important muscle for Expiration?
A
Rectus abdominis,
Internal and external oblique muscles Transversus abdominis
“abdominal muscles”
5
Q
True or False? Lung volume at any given pressure during deflation is larger than during inflation
A
TRUE!!
6
Q
What is trans pulmonary pressure?
A
This is the difference in pressure between the inside and outside of the lung. It is numerically equal to the pressure around the lung when the alveolar pressure is atmospheric.
