The least dense layer :plasma layer The puffy coat layer : leukocytes and platelets The dense layer : erythrocytes Platelets they help form clot Leukocytes fight infection Tgey are two types agranulocytes and granulocytes Granulocytes : neutrophils , eosinophils , basophils Neutrophils :phagocytosis Eosinophils : part of the allergic response they activate mast cell consider a big factor in the pathogenesis of asthma Basophils they secrete chemicals that respond to allergy antigen presenting cells Agranulocytes :mast cell , dendritic cells ,monocytes , T lymphocytes , B lymphocytes Dendritic cells : extremely important cells in the innate immune response , phagocytes and antigen presenting cells ( the cell that activate T lymphocytes ) Mast cells : the look like they contain granules They release histamine ( in the allergic response as well as in the inflammatory response which cause vasodilation and increse in vascular permeability ) Monocytes they circulate in the blood they phagocytes And when the migrate from the blood into tissues the become macrophage they have main functions they are phagocytes and antigen presenting cells ( they activate T lymphocytes ) T lymphocytes they are CD4 T cells , CD8 T cells , memory cells CD4 T cells promote the macrophage activity CD 8 T cells (cytotoxic) to kill infected cells tumors and abnormal cells B lymphocytes :plasma cells and memory B cells Plasma cells combat pathogens Memory B cells specific memory to particular antigen or agent
Amazing! Beautiful handwriting and drawing along with that very clear voice and very clear explanation. You helped me a lot with Biochemistry, Cell Biology and Anatomy lessons. Keep doing the good works!
Concerning monocytes, in my lessons, professor said that there is a lot of small granules called lysosomes, why did you put it in the agranolucytes categories?
First of all thank you so much for these videos, they're really useful. But I think you should erase the clotting factors from the title. Because I literally came for those lol
sir l was read somewhere that basophill as a mass cell present in a blood and the granules of the basophill produce histamine and it also contain heparin ..........it is true or not
Wasn't sure if you were aware of the spelling mistakes made throughout the video and in the title but all the "heme" words are incorrect. For example, haemotology should be hematology.
