What is the main function of skeletal cavities? What is the bone marrow made of?

True or False
__1.The skeletal system works in conjunction with the muscular system.

__2. Cell formation occurs in the finger bones

__3. A cause of fracture is a lack of calcium and phosphorus.

__4. Tendons are fibrous connective tissue that joins muscles to bones.

__5. Ligaments are fibrous connective tissue that binds bones together.

__6. In the long bones there is bone marrow production.

__7. Red white and yellow cells form in the spongy part of the bone.

__8. The bones can be classified as long, short and flat.

__9. Within the long bones we find the hands and feet.