A Univ. of Nev. Strep throat in children generally lasts for about a week (two to seven days). The symptoms can be severe, causing levels of discomfort during swallowing that make a child not want to eat. Other symptoms include redness and white patches in the throat, swollen lymph nodes and fever.
2. chondroblasts-immature cartilage cells. Secrete extracellular matrix, but are not yet rigidly embedded in that matrix. 3. chondrocytes-mature cartilage cells that are embedded in rigid extracellular matrix. These cells reside in small spaces within the matrix that are called lacunae.
Growth of Cartilage. become separated from each other by a thin partition of matrix. Interstitial growth occurs. mainly in immature cartilage. â¢. Appositional growth. - Mesenchymal cells surrounding the cartilage in the deep part of. the perichondrium (or the chondrogenic layer) differentiate into chondroblasts.