Aggregated lymphatic nodules –>
Peyer’s patches
lymphoid organs located in the sub mucosal tissue of the mammalian gut containing very high proportions of iga secreting precursor cells. The patches have B and t dependent regions and germinal centres. A specialised epithelium lies between the patch and the intestine. Involved in gut associated immunity.
Aggregated lymphatic nodules –> Peyer’s patches lymphoid organs located in the sub mucosal tissue of the mammalian gut containing very high proportions of iga secreting precursor cells. The patches have B and t dependent regions and germinal centres. A specialised epithelium lies between the patch and the intestine. Involved in gut associated immunity...
Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..
This tutorial introduces flowing water communities, which bring new and dithering factors into the equation for possible..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..
The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..
Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..
Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..
