2.  skeleton – the framework of connected bones in your body  bone – is an organ of the skeletal system that stores minerals  bone marrow – soft tissue inside a bone that makes blood cells and stores fat  cartilage – the tissue between the bones in your movable joints  joint – is a place where two or more bones meet  Osteoporosis – a disease in which the bones become weaker  arthritis – painful joints

3.  The skeleton is the framework to hold you up and protect organs  More than 200 bones – 206 as an adult  Almost every bone is connected to another bone by a joint ▪ Ligaments hold two bones together at joints ▪ Joints also allow bones to move ▪ Tendons attach muscles to bones  types of bones – long, short, flat, irregular 

4.  cartilage between bones in movable joints, keeps bones from grinding together  soft flexible tissue when you are a baby, as you get older it hardens and becomes bone tissue as minerals, such as calcium  types of joints – fixed, slightly moveable, and synovial (ball and socket, hinge, gliding, pivot, and saddle)  Osteoporosis – is a disease in which the bones become weaker  Arthritis – is irritation of the joints, painful joints

5.  Skull: Head  Mandible: Jaw  Sternum: Breast bone  Ribs

6.  Clavicle: Collar bone  Scapula: Shoulder blade  Humerus: Upper arm bone  Radius: Arm bone (thumb side)  Ulna: Elbow and arm bone  Metacarpals: Finger bones  Phalanges: Finger bones furthest away Metacarpal

7. Vertebrae Cervical Thoracic Lumbar

8.  Ilium: Upper, larger pelvis bone  Coccyx: Tail bone  Sacrum: Triangular bone at base of spine

10.  Femur: Thigh bone  Tibia: Shin bone (larger)  Fibula: Calf bone next to tibia  Patella: Knee cap  Tarsals: Toes closer to ankle