Who am I? Immunity Flashcards
I am the system that returns cellular waste products and excess fluid from the tissues to the circulatory system. Who am I?
Lymphatic system
A primary lymphoid organ, located in the middle of the chest, I grow smaller with age. T lymphocytes come to me to proliferate and mature. Who am I?
Thymus
I am the disease that occurs when the body mistakes what belongs in the body for something that does not belong in the body. When a person has this disease, the immune system actually launches an attack against itself! Who am I?
Autoimmune
I am a substance that is recognized by the immune system as being foreign to the body. Who am I?
Antigen
. I am a type of white blood cell; a category known for having large, varied nuclei. Many say that I am the MVP of the immune system! I can be a T-cell, a B-cell or a natural killer cell. Who am I?
Lympocytes
I provide protection via the skin, the lining of the gastrointestinal system, sweat, saliva, tears, and inflammation. I am always present and on the ready to mobilize and attack immediately upon invasion. Who am I?
Innate immuntiy
. I am produced by a type of B cell in response to an antigen. When I attach myself to an antigen, I help the body destroy or inactivate the antigen. I am also called an immunoglobulin. Who am I?
Antibody
. I am the name given to the significant collection of lymphoid tissue associated with human mucosa. I am scattered throughout the body, but all together account for the largest mass of lymphoid tissue (approximately 400 m2!) You will find my type in areas such as the digestive tract, respiratory tract and genitourinary tracts. Who am I?
Mucosa associated lymphoid tissue
I am a type of lymphocyte involved in the humoral immunity of the adaptive immune system. I come from the bone marrow and develop into blood cells called plasma cells that produce antibodies. Who am I?
B cell
I am a flattened organ located in the left upper abdominal quadrant. Immune cells like to congregate in my area. I filter microorganisms and other foreign material from the blood. I also form lymphocytes and monocytes along with extra erythrocytes. Worn out RBCs come to me to be destroyed and removed. Who am I?
Spleen
. I am an immunoglobulin that is found concentrated in body fluids such as tears, saliva, and secretions in the respiratory, reproductive and digestive tracts. I help guard these entrances to the body. I represent about 10 to 15% of the antibodies present in the body. Who am I?
IGA
The third line of defense, I am the type of immunity that is slower to respond, but much more potent. I recognize specific invaders. Who am I?
Adaptive immunity
. I am a small, bean-shaped structure where lymphocytes are often found. I filter harmful substances such as bacteria, viruses and malignant cells as lymph flows through me. Who am I?
Lymph node
I am the largest and most diverse class of immunoglobulins in the plasma, and can be found in all body fluids. I am the smallest, but most common antibody, accounting for 75 to 80% of all antibodies in the body. I am important in the fight against bacterial and viral infections. I am the only type of antibody that can cross the placenta in pregnancy to help protect the fetus. Who am I?
IGG
. Located on the surface of a cell, I am the chromosomal region containing genes that control whether antibodies recognize the cell as belonging to the body or not. Who am I?
Major histocompatibility complex (MHC)
I am a small white blood cell that recognizes antigen fragments bound to cell surfaces by specialized antibody-like receptors. I represent a classification that accounts for approximately 80 percent of circulating lymphocytes. Who am I?
T cells
. I am a coordinator. I am a type of T-cell that some consider the master controller of the immune system. Who am I?
Helper T cell
I am an attacker. I directly attack other cells containing foreign or abnormal molecules on their surfaces. Who am I?
Cytotoxic T cell
. I am a type of T cell that inhibits activation of the immune system. I am the peacemaker. Some call me a regulatory T cell. Who am I?
Supressor cell
I am a lymphocyte that recognizes and kills stressed or infected cells (or those cells lacking self-MHC antigens). I am part of the innate immunity. Who am I?
Natural killer cells
I am the largest antibody/ immunoglobulin. I can be found in blood and lymph fluid and I am the first type of antibody to respond to an infection. I account for about 5 to 10% of all the antibodies in the body. Who am I?
IGM
I am a large and versatile immune cell that devours invading pathogens and other intruders. I once was a monocyte, but decided to migrate into the tissues. Specialized types of me can be found in many organs including the lungs, kidneys, brain and liver. Who am I?
Macrophage
I am one of the white blood cells whose cytoplasm is filled with granules. When my numbers increase, it is often due to an allergic reaction. And, not to brag, but I am also quite effective in killing parasites, such as worms. Who am I?
Eosinophil
I am a white blood cell that is abundant and phagocytic. I am short-lived and very motile. A type of granulocyte, I am produced rapidly when foreign substances are first detected. Who am I?
Neutrophil
