The Skeletal System

4. A type of joint, like in the knees and elbows, that allows back-and-forth movement.
6. A vital fluid in the body, with red and white blood cells produced in the bone marrow.
7. A rubbery tissue that cushions bones and helps them move smoothly at joints.
8. The column of bones (vertebrae) that protects the spinal cord and supports the body.
11. A function of the skeletal system, shielding vital organs like the brain, heart, and lungs.

1. The bone structure that protects the brain.
2. Substances, such as calcium and phosphorus, stored in bones to maintain their strength.
3. Hard structures that form the skeleton, support the body, and protect vital organs.
5. Substances, like calcium and Vitamin D, that help bones grow and stay healthy.
9. Places where two or more bones meet, allowing movement or flexibility.
10. A state of being strong and functional, often used to describe bones that are well-maintained through diet and exercise.