In children,the bones are more flexible and l | vedclass

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(B) Bones are composed of an organic matrix (primarily collagen) and inorganic mineral salts (primarily calcium phosphate). Collagen provides flexibil

Vedclass · Accepted Answer

Large quantity of organic substances and little salts

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(B) Bones are composed of an organic matrix (primarily collagen) and inorganic mineral salts (primarily calcium phosphate). Collagen provides flexibility and tensile strength,while mineral salts provide hardness and rigidity. In children,the proportion of organic substances (collagen) is higher relative to mineral salts compared to adults. This higher organic content makes the bones more flexible and less brittle,allowing them to withstand more stress without fracturing easily. As a person ages,the mineral content increases,making the bones harder but also more brittle.

Description	Structures
$a$. Tibia and fibula	Both form parts of knee joint
$b$. Cartilage and cornea	No blood supply but do require oxygen for respiratory need
$c$. Shoulder joint and elbow joint	Ball and socket type of joint
$d$. Premolars and molars	$20$ in all and $3$ rooted

In children,the bones are more flexible and less brittle because their bones have:

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