Diff: 1 Page Ref: 284 26) The contractile units of skeletal muscles are ________.
A. microtubules
B. mitochondria
C. T tubules
D. myofibrils
Answer:D
Diff: 1 Page Ref: 284 26) The contractile units of skeletal muscles are ________.
A. microtubules B. mitochondria C. T tubules D. myofibrils