Category: Human Biology

Adult stem cells maintain and repair tissues throughout the body Embryonic stem cells are pluripotent cells derived from a 3 – 5 day old human embryo. They have the unique…

Satellite cells are multipotent stem cells of the skeletal muscle tissue, and they play a central role in the growth, maintenance, and repair of the muscles. These self-renewing cells are…

T cell immunity is a key component of the adaptive immune response against pathogens and virus-infected cells. The two main types of effector T cells are helper T cells and…

Definition Any blood cell definition involves a variety of cell types, each with specific functions. The primary components of blood are plasma, leukocytes, erythrocytes, and platelets; the latter three are…

Definition The basal cell is an epithelial stem cell but can also refer to any cell that sits on an epithelial basement membrane. Epithelia are tissues that line the inner…

Definition The white blood cell or leukocyte is an immune cell that protects the body from endotoxins, invading pollutants, bacteria, and viruses; this broad group of cells also removes dead…

Definition An adipocyte cell is a brown, beige, pink, or white fat cell that stores triglyceride droplets, has a secretory function, and/or helps to convert lipids into energy. Fat tissue…