The contractile units of skeletal muscles are ________.
A) microtubules
B) myofibrils
C) mitochondria
D) T tubules

Question

Quizplus · Accepted Answer

Myofibrils are the contractile units of skeletal muscles. They are made up of sarcomeres, the basic functional units of muscle, which are composed of thick and thin filaments of protein. Microtubules, mitochondria, and T tubules all play important roles in muscle function, but they are not the primary contractile units.

The Contractile Units of Skeletal Muscles Are ________