Lymphocytes are part of the human body's innate immune system. Natural killer cells seek out and destroy foreign cells by distinguishing surface molecules of major histocompatibility complex class.
they're called phagocytes (literally, phago = eat, cytes = cells)
Phagocytes are the white blood cells that protect the body by ingesting harmful foreign particles such as bacteria and dead cells. Also they are essential for fighting infections and for subsequent immunity. Phagocytes are crucial in fighting infections, as well as in maintaining healthy tissues by removing dead and dying cells that have reached the end of their lifespan. During an infection, chemical signals attract phagocytes to places where the pathogen has invaded the body. These chemicals may come from bacteria or from other phagocytes already present. Hope this will help!
Phagocytes or macrophages.
I think Phagocytes
No, these are not phagocytes. Phagocytes are a type of white blood cell in humans, such as neutrophils, macrophages, and dendritic cells, that are responsible for engulfing and destroying pathogens like bacteria, viruses, fungi, and protists. These foreign microorganisms are not phagocytes themselves.
Phagocytes are the white blood cells that protect the body by ingesting (phagocytosing) harmful foreign particles, bacteria and dead or dying cells
Foreign invaders are marked by antigens on their surface, which attracts phagocytes like macrophages and neutrophils. These phagocytes recognize the antigens as non-self and engulf the invaders through a process called phagocytosis, helping to remove them from the body.
white blood cells or immune system....
Phagocytes recognize cancerous cells through differences in surface markers, such as altered proteins or glycoproteins that are often overexpressed or mutated in tumors. These abnormal markers can trigger immune responses, allowing phagocytes to identify and engulf the cancerous cells. Additionally, cancer cells may lack certain "self" markers that healthy cells possess, making them more recognizable as foreign by the immune system. Through these mechanisms, phagocytes play a crucial role in detecting and eliminating cancerous cells.
Phagocytes eat anything that seems foreign or harmful to the body (bacteria, virus, infected cells) in a process called phagocytosis. Macrophages are actually a type of phagocyte. They consume large amounts (or clumps) of foreign invaders. They are pretty slow in performing phagocytosis.
Microbes evade the immune system through inhibition of phagocytosis by affecting the receptors that phagocytes use to engulf bacteria or by mimicking host cells so that the immune system does not recognize them as foreign.
B cells release antibodies that attach to foreign invaders and mark them for destruction by phagocytes.