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Bone formed by ossification of tendon is called ?
A. Dermal bone
B. Cartilage
C. Sesamoid bone
D. Membrane bone

Last updated date: 13th Jul 2024
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Hint: A Flexible but inelastic cord of strong fibrous collagen tissue attaching a muscle to a bone is called tendon. Ossification is the natural process of bone formation. In this process mesenchyme is converted directly to the bones. The bones are formed in the body due to many processes like ossification of the tendon etc.

Complete answer:
Option A dermal bone: The dermal bone is also called investing bone or membranous bone. The dermal bone is a bony structure derived from the intramembranous ossification forming component of the vertebrate skeleton. The skull, jaws, pin, shoulder girdles are included.
Option A is incorrect.
Option B cartilage: Cartilage is the most important structural component of the body. It is firm tissue but it is softer and more flexible than bone. The main function of the cartilage is to connect two bones. It is found in many areas of the body like joints, elbow, knees and ankle.
Option B is incorrect.
Option C sesamoid bone: Sesamoids are found in several joints in the body. In the normal foot, the sesamoids are two pea-shaped bones located in the balls of the foot, beneath the big toe joint. The bone formed by the ossification of the tendon is called sesamoid bones. Their functions of sesamoid bones modify pressure, to diminish friction.
Option C is correct.
Option D membrane bone: Membrane bone formed directly in the connective tissue. Some face bones, skull bones and clavicle bones are membrane bones. Small areas of the membrane become jelly like and attract calcium salts. Bone forming cells break down these areas forming a bone lattice, which eventually fits in.
Option D is incorrect.

So, option C is the correct answer.

The sesamoid bones are numerous small round bony masses embedded in some tendons. They are formed by the ossification of tendons. Sesamoid bone is a small bone which is embedded within tendons. Their function is to reinforce and decrease stress on tendons. Usually, tendon bone is situated in the big toe, fingers and knee.