The Immune System

one of the many cells that protects the body against diseases

White blood cells play a crucial role in the immune system, defending the body against infections and foreign invaders.

a blood protein produced to fight diseases or infections, or in response to foreign substances in the body

Antibodies stop harmful germs and tag them for immune cells to destroy.

any foreign substance in the body that can trigger a response from the immune system

The vaccine introduces a harmless antigen to stimulate immunity.

a type of white blood cell involved in allergic reactions and immune responses in the human body

a type of white blood cell involved in the immune response, responsible for recognizing and destroying foreign invaders in the body

an immune cell that produces antibodies to help protect the body against infections

a type of white blood cell that plays a central role in the immune response by recognizing and attacking infected or abnormal cells

a type of immune cell that displays foreign antigens on its surface to activate other cells of the immune system, such as T cells and B cells, to mount an immune response against the pathogen

a small protein that regulates immune responses and cell communication in the human body

a type of white blood cell involved in immune responses and inflammation

an immune cell that can respond more quickly and effectively to a pathogen upon re-exposure

an immune cell that retains information about previously encountered pathogens to mount a quicker and more efficient immune response upon re-exposure

a mature B lymphocyte that secretes antibodies

a type of immune cell that plays a critical role in presenting antigens to other immune cells, helping to initiate and regulate immune responses

a type of white blood cell characterized by cytoplasmic granules and involved in the body's immune response

a group of proteins that are found on the surface of cells and play a key role in the immune system recognition and response

a type of immune cell that can directly kill infected or abnormal cells in the body

a type of immune cell that plays a central role in coordinating and regulating immune responses

a type of immune cell that helps maintain immune balance and prevent excessive immune responses in the human body

a set of genes that help the immune system recognize and respond to foreign substances in the body by presenting them to immune cells for identification

a type of white blood cell that engulfs and destroys foreign substances, pathogens, and cellular debris in the body

a type of immune cell in the human body that engulfs and eliminates pathogens and foreign particles through the process of phagocytosis

a type of immune cell that releases chemical mediators involved in allergic reactions

a type of white blood cell that helps defend the body against bacterial infections by engulfing and destroying bacteria

a key component of the immune system responsible for defending the body against infections and diseases

a type of immune cell that has the ability to suppress immune responses, and they are often associated with pathological conditions such as cancer and inflammation

a specialized type of white blood cell found in the human body

a type of immune cell that is capable of recognizing and destroying infected or cancerous cells in the body without prior sensitization or activation

(usually plural) each of the pair of large lymphoid tissues high up in the throat and behind the nose that have to be removed if swollen

(anatomy) each of the pair of lymphoid tissues in the pharynx at the side of the tongue root

(anatomy) an abdominal organ that controls the quality of the blood cells

The spleen is an organ located in the upper left side of the abdomen, beneath the ribcage, and is part of the lymphatic system.

a small organ in the lymphatic system that filters and traps foreign substances, helping to fight infections and support immune responses

an abnormally large red blood cell found in the bloodstream

an abnormally small red blood cell that can indicate certain types of anemia or underlying health conditions

an immature form of a red blood cell that indicates active blood cell production in the bone marrow

an abnormally shaped red blood cell that deviates from the normal biconcave disc shape, often seen in certain blood disorders or pathologies