The Skeletal System

Main Functions of the Skeletal System

• Provides structural support for the body
• Protects vital organs such as the brain, heart, and lungs
• Facilitates movement by serving as attachment points for muscles
• Stores essential minerals like calcium and phosphorus
• Houses bone marrow, where blood cells are produced

Axial Skeleton

• Comprises the skull, vertebral column, and ribcage
• Protects the central nervous system and supports the body's structure
• Involved in protecting organs of the thorax

Bone Function in Mineral Homeostasis

• Serves as a reservoir for minerals, releasing them into the bloodstream as needed
• Plays a critical role in maintaining the balance of calcium and phosphate levels in the body

Blood Cell Formation

• Blood cells are formed in the bone marrow, specifically in the spongy tissue found within certain bones
• Both red blood cells and white blood cells are produced in this location

Regulation of Red Blood Cell Production

• The hormone erythropoietin is responsible for stimulating the production of red blood cells in the bone marrow
• Erythropoietin is primarily produced by the kidneys in response to low oxygen levels in the blood

Test your knowledge about the skeletal system, which is composed of bones and cartilage and provides support, protection, and facilitates movement. Understand the functions and structure of the axial and appendicular skeletons.