Human skeleton
· All bones in our body are not the same shape. Each bone is different. All the bones together form a skeleton.
· The skeleton gives shape to the body.
· Axial skeleton includes skull, spine and rib cage. Human body has total 206 bones.
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Bone structure is hard. Bones are not flexible. Bone structure
is mainly composed of two components. Bones are formed
from inorganic substances like calcium carbonate, calcium phosphate, minerals, salts.
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Calcium strengthens our bones.
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There are four types of bones – flat bones, small bones, irregular
bones, long bones and skeleton is divided into two parts –
axial skeleton and appendicular skeleton.
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