Function of the Musculoskeletal System

Function of the Musculoskeletal System

Support and Movement

  • The musculoskeletal system’s primary function is to provide support to the body, allowing it to maintain an upright posture.

  • The skeletal system is crucial for movement. Bones function as lever arms, and muscles provide the force to move these levers, leading to various movements.


  • The skeletal system plays a vital role in protecting vital organs. For instance, the skull protects the brain, the rib cage shields the heart and lungs, and the vertebrae guard the spinal cord.

  • Bones such as the pelvis protect delicate organs like the urinary bladder, rectum, and internal reproductive organs.

Blood Cell Production

  • Bones are responsible for the production of blood cells in a process known as hematopoiesis. This process occurs in the red bone marrow found in particular bones, including the hip and femur.

  • There are three types of blood cells produced: Red blood cells, white blood cells, and platelets.


  • The bones of the skeletal system store essential minerals necessary for the body’s physiological processes, such as calcium and phosphorus.

  • Fat is stored in the yellow bone marrow, which can be used as an energy reserve as needed.

Heat Production

  • Muscle contraction during physical activity generates heat, which helps in maintaining the body’s temperature. This heat production is critical for homoeothermic organisms to maintain homeostasis.

Bringing it all together, it’s clear that the musculoskeletal system has a range of crucial functions that are essential for maintaining a healthy, functioning body. Understanding these functions can help in understanding how disruptions to the musculoskeletal system can impact overall health.