1. The Skeletal system

2. The skeleton
Supports the body, protects internal organs, provides for movement, stores mineral reserves, and provides a site for blood cell formation
Skeletal system divided into the axial and appendicular skeleton
206 bones in the adult human skeleton

3. Structure of bone Bones are a solid network of living cells
Bone is surrounded by a tough layer of connective tissue called the periosteum
Haversian canal: contain blood vessels and nerves
Blood vessels that pass through the periosteum carry oxygen and nutrients to the bone.
Compact bone: dense tissue
Spongy bone: less dense tissue
Near the ends of the where force is applied, spongy bone is organized into structures that resemble the supporting girders in a bridge

4. Bone marrow
Within the bones are cavities that contain a soft tissue called bone marrow.
Yellow bone marrow: fat cells
Red bone marrow: produces red blood cells
Bone Marrow Transplant
Red marrow is found mainly in the flat bones such as hip bone, breast bone, skull, ribs, vertebrae and shoulder blades, and in the cancellous ("spongy") material at the proximal ends of the long bones femur and humerus.
In cases of severe blood loss, the body can convert yellow marrow back to red marrow in order to increase blood cell production

5. Joints Place where one bone attaches to another
Permit bones to move without damaging one another
Depending on the type of movement, a joint is classified as:
Immovable (ex. Sutures in your skull)
Slightly movable (ex. Joints between vertebra)
Freely movable (ex. Ball and socket join in your arm)
Ligaments hold bones together in a joint

6. When you are finished, work on the Skeletal Review Questions!
Skeletal stations
While at each station, answer the analysis questions in COMPLETE SENTENCES!
For example:
Q: What were the common causes and risk factors found between the majority of the skeletal disorders?
A. The common causes and risk factors found between the majority of skeletal diseases are…
Station 1: Skeletal Proportions
Station 2: Skeletal Diseases
Station 3: Bone Length and Height
When you are finished, work on the Skeletal Review Questions!