Skeletal System Group members: Carissa DeZwarte, Courtney Diedrich, Taylor Schauer, Noah Ringel
About the Skeletal System <ul><li>It has 260 bones forms a ridge framework to which the softer tissues and organs of the body attached. </li></ul><ul><li>Vital Organs or protected by the skeletal system, the brain is protected by the surrounding skull as the heart and lungs are encased by the sternum and the rib cage. </li></ul><ul><li>Muscles are connected by ligaments, where muscles meet are called joints </li></ul><ul><li>Blood cells is produced in marrow which is located in the center of the bone </li></ul><ul><li>Bones serve as a storage are for minerals such as calcium and phosphorus. </li></ul>
Bones <ul><li>Types Of Bones </li></ul><ul><li>Long Bones: are longer than they are wider and work as levers. The bones of the upper and lower extremities are made of this. </li></ul><ul><li>Short Bones: are short, cube shaped, and found in the wrist and ankles. </li></ul><ul><li>Flat Bones: have broad surfaces for protection of organs and attachment of muscles. </li></ul><ul><li>Irregular Bones: are all others that do not fall into the pervious catigoures. They very in shpe size and surface features, including the bones in the vertabrea and a few in the skull. </li></ul>
Bones Composition <ul><li>Bones are made of tissue that may take one of two forms are Dense Bone and Spongy Bone. </li></ul><ul><li>Dense Bones: its hard and forms the protective exterior portion of all bones. </li></ul><ul><li>Spongy Bone: is inside the compact bone and is very porous (full of tiny holes). </li></ul>
Axial Skeleton <ul><li>Includes the skull, the hyoid bone, the vertebral column (spine sacrum, and coccyx), the sternum, and the ribs. </li></ul><ul><li>Its components are aligned along the long the outside of the body. </li></ul>
Appendicular Skeleton <ul><li>Include two shoulder blades and two collar bones and the shoulder blades are in the upper back and it meets with two bones, the humorous and the clavicle. </li></ul><ul><li>Because the shoulder blades is part of the shoulder joint, the shoulder blades must be mobile to allow upper freedom of movement. </li></ul><ul><li>The clavicle coordinates with the sternum and the shoulder blades, giving support to the pectoral gridle and the adding stability to the shoulder joint. </li></ul>
Joints <ul><li>Bones of the skeleton coordinates at joints. </li></ul><ul><li>Joints from three categories of movability: Freely movable, Slightly Movable, and Immovable. </li></ul><ul><li>A joint capsule covers a joint for protection. </li></ul>
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