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.
After reaching the IgM+ immature stage in the bone marrow, these immature B cells migrate to secondary lymphoid tissues (such as the spleen, lymph nodes, Peyer's patches, etc.) where they are called transitional B cells, and some of these cells differentiate into mature B lymphocytes.