The homecare nurse is making a home visit to a 51-year-old female client with a long-standing diagnosis of multiple sclerosis. The nurse knows that the muscle wasting and weakness associated with the disease process are ultimately manifested as a failure of what normal process in muscle tissue?
Answers:
A. The contraction of fascicles within myofibrils
B. The contraction of the epimysium
C. The surrounding of fascicles by perimysium
D. Thick myosin and thin actin filaments sliding over each other
