Which option is a main type of muscle tissue?(1 point) Responses cardiac cardiac blood vessels blood vessels skin skin spongy bone spongy bone
The correct option is cardiac.
The main type of muscle tissue is cardiac muscle. To determine the correct answer, let's break down the options and analyze each one:
1. Cardiac Muscle: Cardiac muscle is a special kind of muscle tissue found only in the heart. It is responsible for the contraction of the heart, which allows it to pump blood throughout the body.
2. Blood Vessels: While blood vessels are an important part of the circulatory system, they are not considered a type of muscle tissue. Blood vessels consist of different layers such as the tunica intima, tunica media, and tunica externa.
3. Skin: The skin is not a type of muscle tissue. It is the outer covering of our body and serves as a protective barrier against external elements.
4. Spongy Bone: Spongy bone is a type of bone tissue found at the ends of long bones, such as femur and humerus. It plays a role in supporting and protecting the bone, but it is not considered a type of muscle tissue.
Therefore, the correct answer is "cardiac muscle."