1. What is the name of the heart valve between the right atrium and the right ve

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1. What is the name of the heart valve between the right atrium and the right ventricle? A) mitral B) tricuspid C) bicuspid D) semilunar 2. The number of red blood cells an indvidual has is determined by genetics. A) True B) False 3. During what portion of the heart's cycle does it relax? A) pulmonary B) systole C) diastole D) systemic 4. What is a vein that travels from one capillary bed to another called? A) carotid B) arterial C) portal D) lymphoid 5. Which are not considered white blood cells? A) macrophages B) mast cells C) erythrocytes D) eosinophils 6. Which immune cells secrete antibodies? A) B cells B) helperT cells C) suppressor T cells D) complement cells 7. Which of the following is an autoimmune disease? A) acquired immunodeficiency syndrome B) anaphylatic shock C) rheumatoid arthritis D) whooping cough 8. What kind of infective agents use reverse transcriptase? A) prions B) Epstein-Barr viruses C) retroviruses D) protozoans 9. What protozoan disease is most deadly worldwide, killing over 1 million individuals a year? A) AIDS B) SARS C) Tuberculosis D) malaria 10. Once a pregnant woman becomes HIV positive, it is definite that her newborn will be, too. A) True B) False 11. How are the cardiovascular and lymphatic systems linked? A) the lymphatic system returns fluids from tissues to the cardiovascular system B) the cardiovascular system returns fluids from tissues to the lymphatic system system C) red blood cells develop in the lymphatic system before entering the blood D) red blood cells and white blood cells work together to protect the body from infection 12. What happens to blood as it travels through the pulmonary circuit? A) it picks up oxygen and drops of carbon dioxide B) it picks up carbon dioxide and drops of oxygen C) it picks up oxygen and carbon dioxide D) it drops of oxygen and carbon dioxide 13. Which node produces the primary heart rate (where does excitation begin)? A) sinoatrial node B) atrioventricular node C) bundle of his D) purkinje fibers 14. What do we feel when we detect a person's pulse? A) bulging of the artery walls B) contraction of the heart C) closing of semilunar valves D) closing of atriventricular valves 15. What is the medical term for a heart attack? A) myocardial infarction B) aneurysm C) embolus D) arrhythmia 16. What blood proteins bind platelets and red blood cells to form clots? A) albumin B) fibrinogen C) globulin D) antibodies 17. An individual's blood type is determined by A) antigens on their red blood cells B) antigens in their plasma C) antibodies on their red blood cells D) antibodies in their plasma 18. What cellular features are absent in red blood cells? A) nucleus and organelles B) nucleus and cell membrane C) cell membrane and organelles D) ribosomes and cell membrane 19. Inflammation is a form of A) barrier to infection B) innate defense C) adaptive defense D) immunity 20. Active immunity is the result of A) forming memory cells in response to an infection or vaccine B) forming antibodies in response to an infection or vaccine C) receiving antibodies from another individual D) genetic mutation due to infection or vaccine

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