The document summarizes key information about the human skeletal system including that it contains 206 total bones divided into 80 bones in the axial system and 126 bones in the appendicular system. It describes the four main types of joints and bones as well as different types of fractures such as closed, open, greenstick, transverse, spiral, and oblique fractures. The document also lists common bone conditions like osteoarthritis and osteoporosis.

1. Skeletal System 206 Total Bones

2. Types Of Joints Pivot Hinge Ball & Socket Gliding Top of the neck Shoulder/Hip Elbow/Knee Intercarpal joints

3. Cranium Mandible Sternum Rib Vertebral Column Pelvis Sacrum Coccyx Clavicle Scapula Humerus Ulna Radius Carpals Metacarpals Phalanges Femur Patella Tibia Fibula Tarsals Metatarsals Phalanges

4. Types of Bones Long Bone Short Bone Flat Bone Irregular Bone Head – Body - Head As wide as they are long Provides Protection bones which do not fall into any other category

5. Connective Tissues Cartilage – Allows joints to move easily, cushions bones, and supports soft tissue Ligament – Hold bones in place at the joints Tendon – Joins muscle to muscle or muscle to bone

6. Types of Fractures

7. Open Fracture a fracture that protrudes to the exterior of the body.

8. Closed Fracture A Fracture that does not break the skin

9. Greenstick Fracture Only one side of the bone is broken, mostly seen in children

10. Transverse Fracture Break at a right angle and caused by direct traumatic injury

11. Spiral Fracture Bone broke because of a twisting type motion.

12. Oblique Fracture Rarest form of fractures, the break is at an angle.

13. Skeletal System Information Axial System 80 bones Appendicular System 126 bones

14. Conditions of the Skeletal System Osteoarthritis Joint disorder where the cartilage is wearing away Osteoporosis Bones become fragile and more likely to break