Question

Which of following is not feature of skeletal striated muscle fibres ?
O Their T-tubule system is well-developed.
Their sarcoplasmic reticulum is well-developed
Their intercalated discs are well-developed
Their mitochondria are numerous.
Submit​

Answer 1

Explanation:

Actin filaments are anchored into the z-line of a sarcomere. The thick myofilaments are composed mainly of the protein myosin. It is the orderly overlapping of the actin and myosin filaments that give cardiac and skeletal muscle their striated appearance (light and dark bands).