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iron-containing protein in red blood cells that carries oxygen for delivery to cells


Red blood cell


a blood cell that assists in blood clotting

stem cell

A cell in the bone marrow that gives rise to various types of blood cells


White blood cell (leukocyte) containing dark granules that stain with a basic dye.


a measurement of the percentage of packed red blood cells in a given volume of blood


Protein threads that form the basis of a blood clot


this is a white blood cell whose cytoplasmic granules stain readily with an acidic dye


Protein in blood; maintains the proper amount of water in the blood


swelling due to an abnormal accumulation of lymph fluid within the tissues

thymus gland

Gland located near the heart; it aids in the body's defence against infection by making antibodies


exaggerated, life-threatening hypersensitivity reaction to a previously encounted antigen


Masses of lymph tissue in the nasopharynx


protein that defends the body against disease


substance that triggers an immune response

interstitial fluid

Fluid between cells

immune response

Body's capacity to resist foreign organisms and toxins that can damage tissue and organs; humoral and cell-mediated immunity


the virus that causes AIDS


Acquired Immune Deficiency Syndrome


Inherited defect in ability to produce hemoglobin

pernicious anemia

Lack of mature red cells due to inability to absorb vitamin B12 into the body

aplastic anemia

Failure of blood cell production due to absence of formation of cells in the bone marrow


excessive bleeding caused by hereditary lack of one of the protein substances necessary for blood clotting


a blood disease characterized by an abnormally small number of platelets in the blood

multiple myeloma

malignant tumor of bone marrow cells


Excessive deposits of iron throughout the body

cervical nodes

Neck (of the body) region

inguinal nodes

groin lymph nodes

axillary nodes

lymph nodes in the armpit

mediastinal nodes

Space between the lungs and the chest

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