sistema esqueletico
O esqueleto humano possui duas divisões, o Esqueleto Axial, Composta pelos ossos da cabeça, pescoço e do tronco e Esqueleto Apendicular, composta pelos membros superiores e inferiores. A união do esqueleto axial com o apendicular se faz por meio das cinturas escapular e pélvica. Os ossos são classificados de acordo com a sua forma em, ossos longos, curtos e laminares. Além desses três grupos há outros intermediários, que podem ser distribuído em 5 grupos, como ossos alongados(costela) , pneumáticos(esfenóide), irregulares(vértebras), sesamóides,e suturais. aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa- a
Em nosso esqueleto, onde dois ossos fazem contato é chamado de junta óssea ou articulação. Essa articulação pode ser imóvel ou móvel. Nas articulações móveis, os ossos podem se movimentar, como é o caso do braço e antebraço e cotovelos. Para que ocorra essa movimentação, os ossos precisam