Cartilage is a type of dense connective tissue. It is composed of specialized cells called chondrocytes that produce a large amount of extracellular matrix composed of collagen fibers, abundant ground substance rich in proteoglycan, and elastin fibers. Cartilage is used as protection in between bones and discs in the spinal cord. It is very pliable and perfect for insulation. Cartilage’s absence can be quite painful, as bone on bone contact causes a great deal of discomfort.
Bones are rigid organs that form part of the endoskeleton of vertebrates. They function to move, support, and protect the various organs of the body, produce red and white blood cells and store minerals. Bones have a thick and strong exterior and a soft interior. There are about 206 of them in the body, with the most (26) being found in the hand, alone.
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