Which of the following is NOT a type of muscle tissue?

Muscle tissue is classified into three main types: skeletal muscle, smooth muscle, and cardiac muscle. Each of these types has distinct characteristics and functions in the body.

Skeletal muscle is responsible for voluntary movements and is attached to bones. It is striated in appearance and allows for controlled movement of the skeleton. Smooth muscle is found in the walls of hollow organs, such as the intestines and blood vessels, and it functions involuntarily to manage the movement of substances through those organs. Cardiac muscle is specialized muscle tissue found only in the heart, facilitating involuntary contractions that pump blood throughout the body.

Elastic tissue, while it does play a role in the body, is not categorized as a type of muscle tissue. Instead, it is found in structures such as tendons and ligaments, providing them with the ability to stretch and return to their original shape. Thus, identifying elastic as not being a type of muscle tissue accurately reflects the classification of muscle types in human anatomy.