Bio 211 TTC -Test 1 Questions And Answers Rated A+

3 types of neurons in the neural layer of the retina - photoreceptors, bipolar cells, and ganglion cells Abnormal ECG examples - arythmia, Afib, Vfib, bradycardia, and tachycardia accommodation - change in the shape of the eye Agglutination - clumping of blood; happens when antigen and antibody react if not matched Albumins - Transport fatty acids and steroids, help regulate osmotic pressure of the blood. Anemia - A condition in which the blood is deficient in red blood cells, in hemoglobin, or in total volume. another name for the epicardium - visceral pericardium antibody - A protein that acts against a specific antigen and disables it antigen - substance that triggers a specific protective immune response by the body aqeous humor - STRUCTURE: - Watery, liquid substance inside anterior chamber FUNCTION: - Provides nutrients for lens & cornea - Produced by ciliary epithelium - Accounts for the pressure of the eyearteries - carry blood away from the heart auricle - flaplike piece on the anterior surface of the atrium autorhythmicity - heart's ability to control its own contractions B lymphocytes - produce antibodies basophils - leukocyte that release inflammatory chemicals bitter - detects bases blood doping - A technique for temporarily improving athletic performance in which oxygencarrying red blood cells previously withdrawn from an athlete are injected back just before an event Blood temperature - 1-2 degrees higher than normal body temperture Body temperature - plasma absorbs heat; distribution controlled via vasoconstriction and vasodilation bony labyrinth - passageways in temporal bone Capillaries - The smallest blood vessels, and the site of exchange of chemicals and water between the blood and the tissues. cardiac cycle - 1. atrial contraction and ventricular filling 2. Isovolumetric contraction 3. Ventricular Ejection4. Isovolumetric Relaxation 5. Atrial relaxation and ventricular filling cariac output - amount of blood pumped by a single ventricle in 1 minute cochlea - the snail-shaped tube where sound vibrations are converted into nerve impulses by the Organ of Corti inside the cochlear fluid colloid osmotic pressure - pressure exerted by plasma proteins on permeable membranes in the body; draws fluid into blood and prevents excess fluid loss from capillaries to interstitial fluid colony stimulating factors - stimulate growth and differentiation of immature leukocytes in bone marrow Components of blood - 55% plasma, 44% red blood cells, <1% white blood cells, platelets Conduction system components in order - SA node (atria contract)>AV node> AV bundle> bundle branches> Perkinje fibers (ventricles contract) conjunctiva - mucous secreting epithelium lining the eyelids and covering the anterior portion of the sclera coronary circulation - nutrients to heart muscles Depolarization - Na+ inflow dubb - closing of semilunar valves Eosinophils - Leukocyte that chemically destroys parasitic wormsErythrocyte destruction - Aged cells are phagocytized by macrophages in the liver and spleen, each component is separated Erythrocytes - transport O2 and CO2, live 120 days, anucleate, biconcave disc shape, hemoglobin subunits Erythropoeisis - production of red blood cells external ear function - detects sounds waves