The Skeletal System

The skeletal framework functions are as follows. * Provide protection * Sports * Blood production * Support * Shape * Definition of mineral production function: Protection: Bone is designed to protect delicate parts of the body. These parts are the main organs, the brain is protected by the skull, the lungs and the heart are protected by the ribs, and the vertical columns protect the spinal cord.

Motor mechanisms include three major systems of nervous system, muscular system, and skeletal system. The nervous system emits an electrical impulse that activates the muscles and provides a lever and anchor to pull the muscle. Every skeletal muscle has a starting point and an insertion point. The starting point is an anchor, while the muscles are functioning, the bones remain stationary. Insertion is a moving bone as muscles function. Thus, for example, in the case of the biceps brachialis muscle, the upper arm and shoulder are the starting point (anchor) and the forearm bone is the insert. Interestingly, the strength required by the muscles is directly related to the length of the bone (or lever) and the place where it is attached. This means that since the spine is short and the connection point is close to the origin, the short person actually consumes less power than the taller person.

All the bones and joints in the body form a skeletal system, which essentially connects with the muscles to form the musculoskeletal system. The skeletal system has three basic functions. As explained in Chapter 3, the skeletal system supports all other organ systems in the body by providing the inner and outer bone and joint frameworks of other organ systems. This structure also provides the shape of the body. Bones can protect internal organs such as the brain, lungs, uterus. This is a noteworthy feature, therefore worthy of detailed processing.