Question

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 effect will this have on the ability of people with this disease to carry out gas exchange?
-It will decrease the ability to exhale but the ability to inhale will be unaffected.
-It will decrease their ability to exchange air into and out of the lungs, decreasing gas exchange.
-It will have no effect on their ability to carry out gas exchange.
-It will cause a buildup of mucus in their respiratory tract, decreasing gas exchange.
-It will lower the surface area for gas exchange, decreasing gas exchange.

Answer 1

Answer:

It will decrease their ability to exchange air into and out of the lungs, decreasing gas exchange.

Explanation:

Muscular dystrophy is a rare genetic disease of the skeletal system which occurs early in childhood. Other symptom of muscular dystrophy include impaired learning,muscle stiffness and pain. The rib cage protects and houses the lungs. When the muscle of the rib cages gets impaired then it affects how gases are inhaled and exhaled.