The Skeleton & Bones
The Skeleton & Bones category covers the bones and function of the human skeleton, the axial and appendicular skeleton, anatomy of the spine, types of joints including synovial joints, types and shapes of bones as well as joint actions and planes of movement.
The human skeleton is made up of 206 bones. The functions of the skeleton are to provide support, give our bodies shape, provide protection to other systems and organs of the body, to provide attachments for muscles, to produce movement and to produce red blood cells.
It is important for bones to be strong to support our body weight and in some cases provide protection such as the skull and ribs. However, they must also be light enough to make movement possible.
The spine consists of 33 bones or vertebrae, 24 of which are separate bones allowing movement and 9 which are fused together. The 5 sections of the spine or vertebral column are the cervical, thoracic, lumbar and sacrum which includes the coccyz.
A joint is the point where two or more bones meet. There are three main types of joints; Fibrous (immovable), Cartilaginous (partially moveable) and the Synovial (freely moveable) joint.
Bone marrow is a soft gelatin like tissue found in the central cavities of long bones and some short bones. It contains Stem cells and it produces most of the new red blood cells in the human body. There are two types of bone marrow. Red bone marrow (which is also known as myeloid tissue) and yellow bone marrow (fatty tissue).
There are 5 types of bones in the human body. These are long bones, short bones, flat bones, irregular bones and sesmoid bones. Here we outline the different types of bones in the human body and explain where they are found. Test yourself at the bottom of the page with our interactive online flash cards.
The human skull contains 22 bones. 8 bones make up the cranium and the other 14 form the lower front of the skull, these are known as the facial bones.
There are three planes of motion in which we move. If you think about it, most of our movements are not straight up and down, or side to side etc, especially in sports. They tend to combine a mixture of movements in different planes.
The Breastbone (Sternum) is a flat bone which runs down the middle of the front of the chest. The sternum consists of the manubrium; the corpus (body) and the xiphoid process. The main function of the breast bone is to work with the ribs to protect the lungs, heart and major blood vessels.