Question

Write a note on bones of human

Answer 1

Answer:

The human skeleton is the internal framework of the human body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together. ... The axial skeleton is formed by the vertebral column, the rib cage, the skull and other associated bones

Answer 2

Bones:-

Features:-

• It's a type of connective tissue.

• Bones have hard and non-piable Calcium rich substance which gives bone strength.

• Bones are highly vascular.

• Bones are mineralised.

• Bones are rigid.

• Bones have a canalicular system.

• Outermost covering of bone is called Periosteum.

• Bones have regeneration capacity.

• Periosteum is fibrous connective tissue.

• Bones are produced in Osteoblast.

• Osteoblasts devide to form Osteocyte and synthesizes part of matrix.

• Mtaure bone cells are found in lacuna.

• Process of bone formation is called Ossification.

• Bones are destroyed in Osteoclast cells

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Functions:-

• Provides structural framework to body.

• Protects and support softer organs.

• The bone marrow produces blood cells.

• Some bones like limb bones helps in weight bearing.

• Helps in movement.