Which of the following is not a reason muscular weakness tends to develop in old age?
A) The myocytes of aged muscle no longer synthesize myosin.
B) Aged muscle has less glycogen, myoglobin, and creatine phosphate.
C) There are fewer and smaller mitochondria in aged muscle.
D) There are fewer motor neurons in the spinal cord.
E) Aged muscle fibers have fewer myofibrils.
A
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The carina is located at T3/T4.
Answer the following statement true (T) or false (F)
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a. E b. D c. G d. M
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