Phlebotomy Technician Practice Exam (NCPT/CPT)

What kind of muscle lines the intestines and organs?

1. Cardiac muscle

2. Skeletal muscle

3. Smooth muscle

4. Striated muscle

The correct answer is: Smooth muscle

Smooth muscles are unique in that they lack striations and are involuntary, meaning that they are not under conscious control. Cardiac muscle, found in the heart, and skeletal muscle, attached to bones, are both striped or striated and are under voluntary control. Striated muscle is a general term that includes both cardiac and skeletal muscles, so it is not the specific type of muscle found in the intestines and organs. Therefore, the correct answer is smooth muscle.