Medical Terminology in Hematology and Immunology Quiz

Anemia refers to a low level of hemoglobin, resulting in reduced oxygen-carrying capacity of the blood.

Leukocytes, also known as white blood cells, are primarily involved in the body's immune response against pathogens.

Platelets, also known as thrombocytes, are primarily responsible for blood clotting, forming clots to stop bleeding.

Blood type O-negative (O-) is considered the universal donor because it lacks A, B, and Rh antigens, reducing the risk of adverse reactions in recipients.

IgA is primarily found in secretions such as tears, saliva, and breast milk, providing localized immunity against pathogens at mucosal surfaces.

Type I hypersensitivity reactions are mediated by IgE antibodies, leading to the release of histamine and other inflammatory mediators, causing allergic reactions.

Hematopoiesis refers to the process of blood cell production, which occurs primarily in the bone marrow.

IgE is primarily responsible for triggering the allergic response, including the release of histamine.

Polycythemia refers to an abnormal increase in the number of red blood cells in the bloodstream.

Immunoglobulin G (IgG) provides long-term immunity against pathogens by neutralizing and marking them for destruction.

The liver is not considered a lymphoid organ; instead, it primarily functions in metabolic processes such as detoxification and nutrient storage.

Thrombosis refers to the formation of a blood clot (thrombus) inside a blood vessel, which can obstruct blood flow and lead to various complications.

Leukocytosis refers to the overproduction of abnormal white blood cells, commonly observed in leukemia.

Autoimmune diseases occur when the immune system mistakenly attacks the body's own cells and tissues, failing to distinguish them from foreign invaders.

Agranulocytosis refers to a significant decrease in granulocytes, a type of white blood cell essential for fighting infections.

Neutralization is the process by which antibodies bind to and block key sites on pathogens' surfaces, preventing them from infecting host cells.

A deficiency in both T cells (lymphocytes) and B cells (lymphocytes) can lead to severe combined immunodeficiency (SCID), resulting in susceptibility to severe infections.

Pancytopenia is a condition characterized by a reduction in all types of blood cells (red blood cells, white blood cells, and platelets), leading to symptoms such as anemia, infections, and bleeding tendencies.