Firstly, the process of the digestive system can be broken down into four sections, ingestion, digestion, absorption and assimilation (Toole, Toole and Toole, 1999). Any food or drink which is ingested travels through the alimentary canal. It is aided by associated organ structures, where it undergoes mechanical and chemical means to achieve assimilation within the body for cellular respiration and the production …show more content…
The skeletal system is important for support, protection of delicate organs, the manufacturing of blood, storage of nutrients, and locomotion as it provides the points of attachment for skeletal muscles (Mader, Windelspecht and Cox, 2014). Meanwhile, the muscular system accounts for a larger percentage of the body 's mass, it requires vast amounts of energy to contract, and is responsible for the movement, maintaining an upright posture, balance, functions such as peristalsis and heat …show more content…
The pelvis provides the anchor for these powerful muscles. It possesses a ‘ball and socket’ joint function, this allows 360o movement and permits agility and flexibility for the femurs (Roberts, Reiss and Monger, 2000). During running, the body’s weight is transferred successively between each leg. Large muscles such as the quadriceps, hamstrings and gluteus maximus, work together as flexor and extensor muscles in order to move the femurs accordingly (Lowrie and Goodger, 2009). The ATP created, engages muscles in the cross bridge cycle, this allows them to contact and relax and move the skeletal system whilst