Epiphysis The knob like end of the bone, often contains red marrow (blood cells). Parts of a bone Diaphysis The long shaft of the bone. These bones fuse together between ages 20 to 30. The coccyx Co1 - Co4 The lower tip of the spine. These bones fuse together between ages 16 and 18. Thoracic vertabrae T1 - T12 vertebrae of the upper body (thorax) Lumbar vertebrae L1 - L5 vertebrae of the lower back Bones of the sacrum S1 - S5 vertebra within the pelvic girdle.
The spine The spine is divided into 5 main areas and each bone (verebrae) has a letter and number: Cervical vetebrae C1 - C7 the neck region. The Proximal and Distal skeleton are sometimes collectively referred to as bones of the extremities. The Proximal skeleton The femur and humerus (ie the bones proximal to the Axial skeleton) The Distal skeleton The lower legs (tibia, fibula, and feet bones) and lower arm (radius, ulna, and bones of the hand). The Axial skeleton This is the main body including the pelvis, thorax, and skull (excluding the arms and legs). It is not the aim of this guide to catalogue each bone, but the following may be useful: Thorax the bones of the thorax (ribs, sternum and thoracic vertebrae) form a cage which protects many of the body's vital organs. In addition the skeletal system stores and produces blood cells in the bone marrow. Locomotion and support, bones are moved by the skeletal muscles. There are a wide variety of bones/bony tissues adapted for specific functions to aid The skeleton provides a framework for the muscles, it controls and directs internal pressure and provides stability anchoring pointsįor other soft tissues. Contents Functions of the skeletal system The skeleton Parts of a bone Types of bone Bones and growth Roots, suffixes, and prefixes Cancer Focus Related Abbreviations and Acronyms Further Resources Functions of the skeletal systemThere are about 206 bones in the human body, they have the function of protecting and preserving the shape of soft tissues.
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