What is a motor unit?
A. It is a single motor nerve and all the muscle fibres that it controls
B. It is the segment of a myofibril between two Z-lines
C. Both A and B
D. Neither A nor B
Answer: A
A. It is a single motor nerve and all the muscle fibres that it controls
B. It is the segment of a myofibril between two Z-lines
C. Both A and B
D. Neither A nor B
Answer: A