Skeleton Function Essay

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Functions of the skeleton. The human skeletal functions:  Gives support to the body  Organ protection  Blood cell production  Storage of minerals  Allows movement Support. The skeleton within a human body is made up of 206 bones which provide support and points of attachments to muscles and ligaments within the body. Bones give body shape and helps with the support of the weight of muscles and internal organs. Without these an upright posture would not be able to be maintained. Protection. One of the main functions of the skeleton is protect the major internal organs within the body. The skull (cranium) acts as a protective casing for the brain and the sensory organs, the rib cage provides protection to the lungs and heart and the spinal column protects the nerves. Blood cell production. Bone marrow is found inside the bone its function is to produce the body’s red and white blood cells through a process called haematopoiesis. Storage of minerals. Minerals such as calcium and phosphorus are stored within the tissue of the bone. When needed they are released to various parts of the body to carry out various functions. Movement. Bones within the body enable movement and act as anchors for muscles. There are three main types of joints.  Fibrous or fixed joints (immovable)  Cartilaginous joints (slightly moveable)  Synovial joints (freely moveable) Where do joints form? Joints which are also called articulations are formed where the surfaces of two or more bones meet and articulate together. Bones are connected to each other by fibrous tissue (ligaments) which allows movement and flexibility and the tendons attach the muscles to the bone. Synovial joints can be determined by their shape and the amount of movement they have as seen in fig 1.6 Fig 1.6 Synovial joints Boyle & Senior Human Biology 3rd edition Synovial joints. A

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