Outline the anatomy and physiology of the human body in relation to the importance of correct moving and positioning of individuals.
The back is made up of the spine or vertebral column which is formed from a number of different groups of bones. It protects the spinal cord and allows flexibility of the upper body. The bones are held together by ligaments and small muscles which stretch from one bone to the next to give protection and keep the joint aligned. Between each bone and the next is a disc which is a shock absorber. Each disc consists of a soft semi fluid centre part, the nucleus, which is surrounded by a tough and fibrous outer coating, the annulus. The nuclear material moves around within the disc allowing the disc to alter their shape and act as shock absorbers.
There are seven cervical vertebrae, which together make up the skeletal structure of the neck. These protect the spinal cord, support the skull and allow a range of movement. The twelve thoracic vertebrae are the bones of which the ribs are attached. The thoracic vertebrae sit between the cervical vertebrae of the neck and the lumbar vertebrae of the lower back. The five lumbar vertebrae of the lower back are the strongest vertebrae of the spinal column. The intervertebral discs and connecting spinal ligaments support the bones of the spine. They act as shock absorbers reducing wear on the vertebrae. The sacrum and coccyx form the tail end of the spinal column both are formed from fused vertebrae, allowing attachment for weight bearing ligaments and muscles and helping to protect the pelvic organs.
Muscles work like levers and they allow the bones at joints to work like hinges. When the muscle contracts it makes the bones at the joint to move to the direction they are designed to move and as far as they can allow. They need to be exercised on a regular basis otherwise they become floppy and make movement slower