Lesson 1, Topic 1
In Progress


April 11, 2024

albumin (al BYOO men)    Most abundant plasma protein in human blood. It is important for regulating the water balance of blood.
anemia    A deficiency of hemoglobin in the blood. Accompanied by a reduced number of red blood cells, pale skin, weakness, and shortness of breath, among other symptoms.
antibody    Protein produced in the blood or tissues in response to a specific antigen that destroys or weakens the antigen. Part of the immune system.
antigen    A substance that stimulates the production of an antibody when introduced into the body. Antigens include toxins, bacteria, viruses, and other foreign substances.
artifact    A substance, structure, or event that does not naturally occur in a situation. Examples include interference, or electrical “garbage” on an ECG, or crystals, lint, or contamination of a staining technique.
atypical lymphs    In many viral infections, stimulated or reactive lymphs are called atypical lymphs. They are commonly seen in infectious mononucleosis, or “mono.”
autoimmune    An immune response against a person’s own tissues, cells, or cell parts.
buffy coat    A white layer of WBCs and platelets that form between the plasma and the RBCs when anticoagulated blood is centrifuged.
centrifuge (SEN truh fyooj)    A machine that rotates at high speed and separates substances of different densities by centrifugal force. For example, a tube of blood is separated into plasma/serum, white blood cells, platelets, and red blood cells.
cytoplasm    (SYE toh plaz um) Jelly-like substance the surrounds the nucleus and fills the cells.
density    Describes how compact or concentrated something is.
dilution    Reducing the concentration of a mixture or solution by adding a known volume of liquid.
enzyme    A special protein that speeds up a chemical reaction in the body.
hematologist (hee mah TOL uh jist)    A person trained in the nature, function, and diseases of the blood and blood-forming organs. Can be a physician, trained laboratory personnel, or researcher.
hemoglobin (HEE muh gloh bin)    The oxygen-carrying pigment of red blood cells.
hormone    A chemical substance produced in an endocrine gland and transported in the blood to a specific tissue, where it applies a specific effect.
immunoglobulins (im yuh noh GLOB yuh linz)    A group of related proteins that function as antibodies. They are found in plasma and other body fluids.
intracellular pathogen    A disease-causing organism that is within or inside a cell.
lateral flow immunoassay (im yuh noh AH say)    A laboratory or clinical technique that uses the specific binding between an antigen and antibody to identify and quantify a substance in a sample. The sample in this technique moves in a sideways motion, usually on absorbent paper.
malignant    A cell with uncontrolled growth that spreads rapidly, with the potential for serious harm.
metabolic    Relating to or resulting from metabolism (the chemical process in which cells produce the substances and energy needed to sustain life).
microcuvette (MIE kroh koo vet)    A small plastic or glass tube designed to hold samples for laboratory tests that detect light or color changes.
morphology    The study of the form, shape, and structure of an organism or cell.
nucleus    Control center of the cell; contains chromosomes that are made up of deoxyribonucleic acid (DNA), which carries genetic information.
pathologic    Caused by or involving disease.
physiologic    Consistent with the normal function of the body.
pipet (pie PET)   A slender tube attached to or including a bulb, for transferring or measuring small amounts of a liquid, often used in a laboratory.
polycythemia (pohl ee sie THEE mee ah)   A disorder characterized by an abnormal increase in the number of red blood cells in the blood.
reagent    A substance used in a chemical reaction.
senescent cell (si NES ent)    An old or aging cell that can no longer divide and reproduce.