Answer
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Hint:As we all know that cartilage is a flexible, resilient and smooth elastic tissue which is like rubber pad covering and protecting the ends of long bones at joints and nerves. It has a fibrous covering layer called Perichondrium.
Complete answer:
As we have learnt till now that cartilage is a flexible, resilient and smooth elastic tissue which protects the ends of long bones at joints and nerves acting like rubber pad. It consists of a dense network of collagen fibres and elastic fibres. The formation of cartilage from the condensed mesenchymal cells tissue is called Chondrification or Chondrigenesis.
A covering of dense irregular connective tissue called Perichondrium surrounds the surface of most cartilages. Perichondrium is composed of two layers, one is the outer fibrous layer and the other is inner cellular layer. The inner cellular layer of Perichondrium is germinative in nature and gives rise to immature cells called Chondroblasts which further matures into the Chondrocyte cells of the cartilage. These cartilage cells are found within a fluid filled Lacunae and the matrix of cartilage consists of fibres and a protein called Chondrin.
Osteoblasts are the immature cells of bones which are formed from the germinative inner layer of the Periosteum layer of bones. These cells mature into the Osteocytes which are the main bone cells.
Osteoclasts are the bone dissolving cells that help in remodelling of bones. These cells remove the bones by dissolving the minerals and breaking down the matrix in a process known as bone resorption.
Fibroblasts are the cells that secrete the extracellular matrix and collagen fibres.
Hence, the correct answer is option (A).
Note:Hyaline cartilages are the most abundant type and have a bluish-white translucent matrix, white fibrous cartilage is the strongest and toughest cartilage found in intervertebral disc and pubic symphysis. Nucleus Pulposus is present at the centre of intervertebral discs which is considered as a remnant of Notochord.
Complete answer:
As we have learnt till now that cartilage is a flexible, resilient and smooth elastic tissue which protects the ends of long bones at joints and nerves acting like rubber pad. It consists of a dense network of collagen fibres and elastic fibres. The formation of cartilage from the condensed mesenchymal cells tissue is called Chondrification or Chondrigenesis.
A covering of dense irregular connective tissue called Perichondrium surrounds the surface of most cartilages. Perichondrium is composed of two layers, one is the outer fibrous layer and the other is inner cellular layer. The inner cellular layer of Perichondrium is germinative in nature and gives rise to immature cells called Chondroblasts which further matures into the Chondrocyte cells of the cartilage. These cartilage cells are found within a fluid filled Lacunae and the matrix of cartilage consists of fibres and a protein called Chondrin.
Osteoblasts are the immature cells of bones which are formed from the germinative inner layer of the Periosteum layer of bones. These cells mature into the Osteocytes which are the main bone cells.
Osteoclasts are the bone dissolving cells that help in remodelling of bones. These cells remove the bones by dissolving the minerals and breaking down the matrix in a process known as bone resorption.
Fibroblasts are the cells that secrete the extracellular matrix and collagen fibres.
Hence, the correct answer is option (A).
Note:Hyaline cartilages are the most abundant type and have a bluish-white translucent matrix, white fibrous cartilage is the strongest and toughest cartilage found in intervertebral disc and pubic symphysis. Nucleus Pulposus is present at the centre of intervertebral discs which is considered as a remnant of Notochord.
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