ANATOMY

GENERAL ANATOMY

SKELETAL ANATOMY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which mineral makes up our bones?
A
Calcium
B
Vitamin D
C
Blood Cells
D
Bone Marrow
Explanation: 

Detailed explanation-1: -In bone, calcium exists primarily in the form of hydroxyapatite (Ca10 (PO4)6 (OH)2), and bone mineral is almost 40 percent of the weight of bone. Bone is a dynamic tissue that is constantly undergoing osteoclastic bone resorption and osteoblastic bone formation.

Detailed explanation-2: -Calcium is a mineral most often associated with healthy bones and teeth, although it also plays an important role in blood clotting, helping muscles to contract, and regulating normal heart rhythms and nerve functions.

Detailed explanation-3: -Bone composition and structure Sixty-five percent of bone tissue is inorganic mineral, which provides the hardness of bone. The major minerals found in bone are calcium and phosphorus in the form of an insoluble salt called hydroxyapatite [chemical formula: (Ca)10(PO4)6(OH)2].

Detailed explanation-4: -Collagen is a protein that provides a soft framework, and calcium phosphate is a mineral that adds strength and hardens the framework. This combination of collagen and calcium makes bone strong and flexible enough to withstand stress. More than 99 percent of the body’s calcium is contained in the bones and teeth.

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