Which function is performed by the skeletal system?

Which function is performed by the skeletal system?

• A. Movement
• B. Digestion
• C. Gas Exchange
• D. Hormone Regulation

Answer: (A)

Movement comes from the skeletal system. Bones act as rigid levers and provide attachment points for muscles; when muscles contract, they pull on bones across joints to create motion. This lever-and-joint setup translates chemical energy into mechanical work, letting us walk, run, grasp, and perform precise movements. The skeleton also supports the body, protects organs, stores minerals, and makes blood cells, but the function most directly related to the question is enabling movement. Digestion is done by the digestive system, gas exchange by the respiratory system, and hormone regulation by the endocrine system (bone signaling can influence metabolism, but it’s not the primary role here).

Movement comes from the skeletal system. Bones act as rigid levers and provide attachment points for muscles; when muscles contract, they pull on bones across joints to create motion. This lever-and-joint setup translates chemical energy into mechanical work, letting us walk, run, grasp, and perform precise movements. The skeleton also supports the body, protects organs, stores minerals, and makes blood cells, but the function most directly related to the question is enabling movement. Digestion is done by the digestive system, gas exchange by the respiratory system, and hormone regulation by the endocrine system (bone signaling can influence metabolism, but it’s not the primary role here).