The Skeletal System
Support: Support & give shape to Human body.
Protection: Protect internal soft organs and tissues. E.g. Ribs protect heart & lungs.
Movement: Work with muscles to produce movement.
Mineral storage: contain reserves of minerals such as calcium.
Blood Cell Formation: different types of blood cells are produced within the soft internal cavity of bones.
There are 206 bones in an adult human skeleton.
Axial Skeleton: supports center axis of body (skull, vertebral column & ribs)
Appendicular Skeleton: includes the bones of the arms, legs & pelvis.
See Figure 32-1 You need to know the parts listed.
Bones are a solid network of living cells and protein fibers that are surrounded by deposits of calcium salts.
Bone marrow: is contained within many bones. There are 2 types of marrow yellow & red.
Yellow= Fat storage Red= Stem cell production.
Joints: contain connective tissue that hold bones together, and permit bones to move without damaging each other.
Ligaments: hold bones together in a joint.
Copy the 4 types of joints into your notes on page 926
Complete Skeletal System Worksheet