Which tissue type provides movement?

• A. Epithelium
• B. Muscle
• C. Connective
• D. Nervous

Answer: (B)

Muscle tissue is responsible for movement. Its cells can contract, shortening in response to signals, which pulls on bones, tendons, or organ walls to produce motion. This contraction comes from the interaction of actin and myosin filaments within muscle fibers, using energy from ATP to slide past each other. Different muscle types handle different kinds of movement: skeletal muscle enables voluntary movements of the limbs, smooth muscle moves contents through hollow organs, and cardiac muscle pumps blood by contracting the heart.

Epithelium forms protective barriers and lines surfaces, but it doesn’t contract to move parts. Connective tissue provides structure and support but doesn’t generate movement on its own. Nervous tissue transmits signals and coordinates activity, yet the actual movement comes from the contracting muscle tissue.