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CH 15

Ch 15 Innate Immunity

QuestionAnswer
Dermis The skin's inner, thicker portion, composed of connective tissue
Granulocytes White blood cells containing large granules in their cytoplasm.
Prostaglandins Substances released by damaged cells that increase the effects of histamine and kinins.
Chemotaxis The movement of a cell either toward or away from a chemical stimulus
Ciliary Escalator Mechanism to move dust and microorganisms trapped in mucus out of the lower respiratory tract.
Complement A defensive system consisting of serum proteins that participate in the lysis of foreign cells, inflammation and phagocytosis.
Cytolysis The destruction of cells, resulting from damage to their cell membrane, that causes cellular contents to leak out.
Dendritic cells These phagocytic cells are found in th edermis
Eosinophils These cells release toxic proteins against parasitic helminths.
Epidermis The outer, thinner portion of the skin that is in direct contact with the external environment.
Fever Abnormally high body temperature. 
Inflammation A host response to tissue damage characterized by redness, pain, heat and swelling
Keratin The protein found in the top layer of epidermal cells
Lacrimal Apparatus The mechanism that protects the eyes by manufacturing and draining away tears
Leukocytes White blood cells.
Lymphocytes These cells play a key role in specific immunity.
Lysozyme an enzyme that destroys the cell wall of bacteria
Macrophage The predominant phagocytic cell.
Mast Cells These cells release histamine.
Monocytes These cells mature into macrophages.
Neutrophils Polymorphonuclear leukocytes.
Nonspecific Resistance Defenses that protect us from any pathogen, regardless of species.
Opsonization The coating of microorganism with certain serum proteins that promote phagocytosis.
Phagocyte A cell capable of engulfing and digesting particles that are harmful to the body.
Phagocytosis Ingestion of particulate matter by a cell.
Plasma The liquid portion of the blood containing formed elements.
Pseudopodia Projections of the plasma membrane used by phagocytes to engulf particles.
Pyrogens Chemicals that trigger the hypothalamic “thermostat” to reset at a higher temperature.
Resistance Our ability to ward off disease through our defenses.
Sebum Oily substance that forms a protective film over the surface of the skin
Serum Plasma minus its blood clotting-proteins.
Skin The body organ that has the largest surface area
Susceptibility Vulnerability or lack of resistance
Vasodilation An increase in the diameter of blood vessels.
Created by: drmicro