Which type of muscle tissue is under involuntary control?

• A. Smooth muscle tissue
• B. Cardiac muscle tissue
• C. Voluntary (striated) muscle tissue
• D. Skeletal muscle tissue

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the types of muscle tissue in the human body. There are three main types: skeletal muscle, cardiac muscle, and smooth muscle.
2. Step 2: Recall the control mechanisms for each muscle type. Skeletal muscle is under voluntary control, meaning you can consciously control its movements.
3. Step 3: Recognize that cardiac muscle tissue, found only in the heart, is under involuntary control, meaning it contracts without conscious effort to pump blood.
4. Step 4: Note that smooth muscle tissue, found in walls of internal organs like the intestines and blood vessels, is also under involuntary control.
5. Step 5: Compare the options given and identify which muscle type is specifically known for involuntary control, focusing on the heart's muscle tissue, which is cardiac muscle.