Question

what changes in the serratus anterior muscles actions when a person is in respiratory distress?

Answer 1

Answer:

usually it causes upwards rotation and abduction of scapula is stablized and origin insertion of serratus anterior is switch in this case it pull the rips upwards to allow more air into the lungs

Answer 2

Answer:

The diaphragm is the most important inspiratory muscle. The contraction of the abdominal muscles (transversus, rectus, and internal and external oblique muscles) increases intra-abdominal pressure, making air flow out of the lung and the abdominal wall move inward.