Question

Osteoid refers to
(a)The smallest bone of the body
(b)Young hyaline matrix of true bone in which calcium salts are deposited
(c)Membranous ossification of cranium
(d)The largest bone of the body

Answer 1

Hint: Bone connective tissue which is formed by various types of bone cells such as Osteoblasts and osteocytes, in which osteocytes are involved in the production and mineralization of bone and osteoblasts are related to the resorption of bone tissue and calcium and minerals are deposited on it.

Complete answer:
Osteoid refers to a young hyaline matrix of true bone in which calcium salts are deposited. This matrix of the bone is non-mineralized. This matrix osteoid which normally gets calcified after some days are produced by osteoblast bone cells. The osteocytes are osteoblast cells that get trapped in the calcified matrix.

Additional Information: -A bone is a solid organ that provides a framework for the body and gives structural support. As kids, we have a total of 270 bones, in which many of them will combine as we get matured, finally having a total of 206 bones without including several sesamoid bones.
-Fifty percent the volume of the bone and forty percent of the weight of the bone is made up of osteoid.
-Ground substances like chondroitin sulfate and osteocalcin along with predominant type I fiber collagen composes ninety percent of osteoid.
So, the correct answer is ‘young hyaline matrix of true bone in which calcium salts are deposited’.

Note: -The largest bone in the body and the smallest bone in the body is the femur (thigh-bone) and the stapes in the middle ear, respectively.
-Internal organs like the brain, heart and lungs are protected by the skull and the ribs due to their high compressive strength.
-Osteosarcoma or osteogenic sarcoma are malignant bone tumors which are mostly developed in adolescence during the time of high osteoid formation which is commonly called as the growth spurts.