ANATOMY

Detailed explanation-1: -Chondroblast cells result in appositional cartilage growth, i.e., an increase in the diameter of the cartilage. Chondroblasts cells are irregular in shape and do not poses blood and lymphatic supply. Interestingly, perichondrium is not present in the articular cartilage.

Detailed explanation-2: -Like fibroblasts, chondroblasts develop elaborate rough endoplasmic reticulum (rER) and Golgi (G); however, the matrix they secrete is rich in type II collagen and proteoglycans, forming a semi-solid matrix.

Detailed explanation-3: -Chondroblasts contribute to the formation of the extracellular matrix and are the precursors of the chondrocytes, which collectively make up cartilage.

Detailed explanation-4: -Chondrocytes are the only cartilage cells to be found in hyaline cartilage. These cells start as chondroblasts (or perichondrial cells) which produce the cartilaginous matrix, then get immobilized within it in small spaces called lacunae.