Skeletal System 11/16/2018

copyright (your organization) 2003 3 Major Functions It protects our vital organs such as the brain, the heart and the lungs. It gives us the shape that we have. It allows us to move. Because our muscles are attached to our bones, when our muscles move, they move the bones 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Additional Functions Support Mineral Storage Storage of blood 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Facts When you were born, your skeleton had around 350 bones. By the time you become an adult, you will only have around 206 bones. As you grow, some of the bones join together to form one bone through growth plates. 11/16/2018 copyright (your organization) 2003

Joints in the body (place where movement occurs Ball-and-socket joints, such as the shoulder and hip joints - allow backward, forward, sideways, and rotating movements 11/16/2018 copyright (your organization) 2003

Joints in the body (place where movement occurs Hinge joints such as in the fingers, knees, elbows, and toes - allow only bending and straightening movements 11/16/2018 copyright (your organization) 2003

Joints in the body (place where movement occurs Pivot joints such as the neck joints - allow limited rotating movements 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Types of Bones Long- form the arms and legs; has a shaft called diaphysis, oxygen and nutrients are brought from the bloodstream. Short bones- small cube-shaped of the wrists, ankles and toes. Flat bones- large somewhat flat surface; shoulder blades, pelvis and skull. Irregular- Bones of the ears vertebrae and face. Sesamoid bones- are formed in the tendon near joints, The patella is an example. 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Bone Cells Osteocytes (bone cell) are part of a dense network of connective tissue. The hardening and development process of the osteocytes is called ossification. 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Bones in Lower Leg Tibia- Large bone in the lower leg, located on the medial side in the A.P (2,7) Fibula- Little bone in the lower leg; lateral side in AP(1) 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Upper Leg Bone Femur- Large bone in the upper leg; Largest bone in the body Proximal end; ball and socket , hip Distal end; hinge joint, knee 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Bones in Lower Arm Radius- bone on the lateral side in AP, ® Ulna-bone on the medial side in AP 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Bone in Upper Arm Humerus- large bone in upper arm. Proximal end, ball and socket, (shoulder) Distal end, hinge joint, (elbow) 11/16/2018 copyright (your organization) 2003

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copyright (your organization) 2003 Upper Extremity Clavicle Scapula Sternum 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Hand Metacarpals Phalanges Carpals 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Feet Metatarsals (3) Phalanges (4) Tarsals (2) 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Hip Pelvis Ischium Illium Pubuis 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Kneecap Patella (1) 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Ligaments Connect bone to bone 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Tendons Connect skeletal muscle to bone 11/16/2018 copyright (your organization) 2003

copyright (your organization) 2003 Cartilage Soft tissue found between bones. 11/16/2018 copyright (your organization) 2003