Question

Which of the following is NOT a difference between cardiac and skeletal muscle?

Answer 1

Answer:

The correct option is this: CARDIAC MUSCLE DOES NOT USE THE SLIDING FILAMENT MECHANISM FOR CONTRACTION, SKELETAL MUSCLE DOES.

Explanation:

The muscles found in the heart are called cardiac muscles while the ones found in the skeleton are called skeletal muscles. Both muscles have some differences and similarities. One similarity between the two is that both of them are striated muscles. Also, both cardiac and skeletal muscles use the sliding filament mechanism for contraction.

The differences include the following:

1. Skeletal muscles are involved in voluntary movement while cardiac muscles engage in involuntary movement.

2. Cardiac muscles can not survive for long in the absence of oxygen while skeletal muscle can adapt to absence of oxygen.

3. Cardiac muscles cell have more mitochondria compare to skeletal muscles cells.