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Skeletal System (types of bones (Short bone (It has a squat, cubed shape.…

- - - - The ribs and sternum make up what is called the ribcage. The rib cage protects the lungs, blood vessels, and heart, along with parts of the spleen, stomach, and kidneys from traumatic injury.
    - - Humerus: This bone runs down from the shoulder socket and joins the radius and ulna at the elbow. Radius: A forearm bone, it runs from the elbow to the thumb side of the wrist. Ulna: side of the wrist
    - - The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx
    - - The hand bones consist of the capools, metacarpals and phananges
    - - The neurocranium forms the cranial cavity that surrounds and protects the brain and brainstem. The neurocranium consists of the occipital bone, two temporal bones, two parietal bones, the sphenoid, ethmoid, and frontal bones all are joined together with sutures.
    - - The leg bones consist of three bones the femur,tibia, and fibula
    - - The pelvis consists of four bones: the right and left hip bones, the sacrum, and the coccyx
    - - The forefoot contains the five toes (phalanges) and the five longer bones (metatarsals).
- - - - Arms: The humerus, radius, and ulna.
      - The clavicles or collar bones.
      - Legs: The femur, tibia, and fibula.
      - Metacarpals, metarsals, phalanges.
- - - - Slightly movable joints permit some movement but provide less stability than immovable joints. These joints can be structurally classified as cartilaginous joints, as bones are connected by cartilage at the joints. Cartilage is a tough, elastic connective tissue that helps to reduce friction between bones
    - - Freely movable joints are classified structurally as synovial joints. Unlike fibrous and cartilaginous joints, synovial joints have a joint cavity (fluid-filled space) between connecting bones. Synovial joints allow for greater mobility but are less stable than fibrous and cartilaginous joints.
    - - Immovable or fibrous joints are those that do not allow movement or allow for only very slight movement at joint locations. Bones at these joints have no joint cavity and are held together structurally by thick fibrous connective tissue, usually collagen.