Which is a primary function of muscle tissue?

Which is a primary function of muscle tissue?

• A. Movement of bones or fluids
• B. Hormone synthesis
• C. Gas exchange
• D. Neural signaling

Answer: (A)

Muscle tissue’s main job is to convert chemical energy into mechanical work through contraction, producing force. This force is what moves bones when skeletal muscles pull on them, and it also propels substances through hollow organs with smooth muscle and pumps blood with cardiac muscle. That focus on generating movement and force is why this option is the best choice. Hormone synthesis is done by endocrine glands, gas exchange occurs in the respiratory system and blood, and neural signaling is the role of the nervous system, not muscles.

Muscle tissue’s main job is to convert chemical energy into mechanical work through contraction, producing force. This force is what moves bones when skeletal muscles pull on them, and it also propels substances through hollow organs with smooth muscle and pumps blood with cardiac muscle. That focus on generating movement and force is why this option is the best choice.

Hormone synthesis is done by endocrine glands, gas exchange occurs in the respiratory system and blood, and neural signaling is the role of the nervous system, not muscles.