BIOLOGY 2B03 Lecture Notes - Lecture 18: Cytoskeleton, Connexon, Lanthanum
Document Summary
During embryogenesis, a mass of cells forms called the blastocyst which contains the inner cell mass. As the number of cells increase, they separate into one of three germ layers endoderm, Mixed the cells of two different sponge species, and the respective cells recognized and adhered to each other and separated from each other. This shows that cells can communicate and recognize each other. Ectoderm, and mesoderm) will recognize and aggregate with each other in the same way they did while in embryogenesis this was proved by holtfreter. A: requires collection of transmembrane proteins called cell adhesion molecules (cams) Once the similar cells aggregate with each other, they form specialized gap junctions in order to start communication with adjacent cells. Epithelial cells: connect side by side (laterally) and create epithelial sheets that line body cavities. These sheets form inner lining of the digestive system and the outer skin layer. There are different types of connections which hold these surfaces together.
