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.
Osteoclasts are nondividing, motile, multinucleate cells that resorb bone matrix from bone surfaces. They are derived from monocytes, which fuse with one another or with macrophages to form the multinucleate osteoclasts. Some osteoclasts lie in recesses of the bone surface called Howship s lacunae or resorption bays.s a consequence, the cells of the inner layer of the perichondrium differentiate into osteoblasts and start producing bone matrix. Now the perichondrium is considered a periosteum. Soon there is a collar of bone, called subperiosteal bone, surrounding the midsection of the cartilage.