Muscular Weakness Tends to Develop in Old Age for All

question 20

Multiple Choice

Muscular weakness tends to develop in old age for all of the following reasons except

• A)aged muscle has less glycogen, myoglobin, and creatine phosphate.
• B)there are fewer motor neurons in the spinal cord.
• C)aged muscle fibers have fewer myofibrils.
• D)there are fewer and smaller mitochondria.
• E)myocytes do not synthesize myosin anymore.