Leukocytes, also known as leucocytes or white blood cells, are the cell components of the immune system present in the blood. Leukocytes protect their harboring organisms from pathogens and other invaders. They are classified into different types- all of which are nucleated cells derived from ...
Too many CD8 lymphocytes in the body can indicate a weakened immune system. A lower number, however, often suggests immunity could be hyperactive. They are classified as suppressor cells, so the health of the immune system can be evaluated by comparing the number of these to CD4 receptor-carry...
Epithelial cells are found throughout the body. The majority of epithelial cells, however, are skin cells. These form the protective barrier on the outside of the body designed to keep germs out and our fluids in. Answer and Explanation:1 ...
Chemokines have been classified into four main subfamilies: CXC, CC, CX3C and C. All of these proteins exert their biological effects by interacting with G protein-linked transmembrane receptors called chemokine receptors, that are selectively found on the surfaces of their target cells. Interferons...
There are numerous sub-types of lymphomas which are classified according to characteristics, location, or extent. Lymphoma can be either Hodgkin’s or the more common non-Hodgkin’s. Lymphomas also differ by the cells from which it originates, either B-cells or T-cells; proteins present on ...
Lymphocytosis is a medical condition characterized by elevated amounts of lymphocytes, a type of white blood cell, in the body. There are three main types of lymphocytes: natural killer cells, T cells, and B cells. Each is important when it comes to defending the body from illness and disea...
cells (M cells) on the mucosal surface recognize and transmit the antigen signal to antigen-presenting cells (such as macrophages, dendritic cells, and lymphocytes), which decompose the antigens into fragments, thereby activating B-lymphoid cells and converting them into IgA+B lymphocytes with the...
Lymphocytes Platelets are formed from what cells? A. Erythrocytes B. Megakaryocytes C. Reticulocytes D. Monocytes What cell types are the only cell types in the body that are classified as "excitatory"? (That is, they can initiate and/or conduct an electrical current.) A. muscle B. n...
What cell types are the only cell types in the body that are classified as "excitatory"? (That is, they can initiate and/or conduct an electrical current.) A. muscle B. nerve C. keratinocyte D. goblet cells What type(s) of membrane transport is (are) carrier-mediated? Which of the ...
White Blood Cells:White blood cells represent 1% of the blood by volume but they are the cells in charge of protecting the body from infectious diseases and other illnesses. They are nucleated cells, and are also known as leukocytes. They are made in the bone marrow by the hem...