biology presentation for the skeletal frame Intro slide 1 acetate 1 The skeleton of a forgiving foetus is formed from tough but flexible gristle that acts as a blueprint for gussy up construction. During ossification ( the changing of gristle to prepare) which begins before birth, the cartilage is broken down and the resulting space is characterize by bone building mineral salts and protein fibres secreted by bone cells. Humans have a bony endoskeleton made up of 206 bones, although we are born with up to 300, but many of these fusee drive during childhood. slide 2 The skeleton is divided into two bump ; the axial and the appendiculur. Axial skeleton The axial skeleton consists of the skull, acantha and rib cage which forms the upright axis of the body. It helps to protect the brain, spinal anaesthesia cord and organs in the chest. Appendicular skeleton The appendicular skeleton consists of the upper and lower limbs and the pe ctoral (shoulder) and hip joint and girdles. The human pelvis is...If you want to get a wide essay, holy order it on our website: OrderEssay.net
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