Muscular dystrophy affects the functioning of skeletal muscle.As this disease advances,it can impair the contraction of the diaphragm and the muscles of the rib cage.What affect will this have on the ability of someone with this disease to carry out gas exchange?
A) It will decrease their ability to exchange air into and out of the lungs, decreasing gas exchange.
B) It will have no effect on their ability to carry out gas exchange.
C) It will cause a build up of mucus in their respiratory tract, decreasing gas exchange.
D) It will lower the surface area for gas exchange, decreasing gas exchange.
E) It will decrease the ability to exhale but the ability to inhale will be unaffected.

Question

Quizplus · Accepted Answer

The diaphragm and muscles of the rib cage play a crucial role in ventilation, which is necessary for gas exchange. If these muscles are impaired due to muscular dystrophy, it will decrease the ability of the individual to exchange air into and out of the lungs, which will decrease gas exchange. In severe cases, this can lead to respiratory failure.

Muscular Dystrophy Affects the Functioning of Skeletal Muscle