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Chapter 33 Terms. 1.Angina pectoris Pain that indicates a heart attack Caused by a blockage in the coronary artery.

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Presentation on theme: "Chapter 33 Terms. 1.Angina pectoris Pain that indicates a heart attack Caused by a blockage in the coronary artery."— Presentation transcript:

1 Chapter 33 Terms

2 1.Angina pectoris Pain that indicates a heart attack Caused by a blockage in the coronary artery

3 Antibody Y shaped proteins Created by the immune system Clump foreign substances together in the blood

4 Antigen A foreign substance in the body that triggers an immune response.

5 Aorta The largest artery in the body Exits the heart

6 Arteriole Smallest branching of an artery Lead directly to capillaries

7 Artery Blood vessel that moves blood AWAY from the heart Very thick walls

8 Atrioventricular valve Valves found between the ATRIA and VENTRICLES Prevents backflow of blood

9 Atrium “TOP” chambers of the heart Move blood into ventricles “Measure” blood for the ventricles to pump

10 blood Connective tissue Medium that carries requirements to cells Medium that carries wastes away from cells

11 blood pressure Pressure exerting on the INSIDE of blood vessels Created by the force of the pumping heart

12 capillary Smallest blood vessels in body Materials can enter and exit the blood through capillaries

13 cardiac cycle One complete cycle of the heart beat

14 circulatory (cardiovascular system) System of transport in organisms Moves materials to and from tissues

15 closed circulatory system Circulatory system where blood does NOT leave the conducting vessels

16 diastole Relaxation period of the heart cycle

17 ECG ElectroCardioGram Graph of the electrical activity of the heart during the cardiac cycle

18 Heart attack Situation where blood flow is blocked from the heart tissues Muscle cells cannot contract

19 Hemoglobin Molecule that gives blood its red color Carries oxygen in the blood

20 lymph Tissue fluid that is actively being transported back to the bloodstream via lymph vessels

21 Open circulatory system Circulatory system where blood exits the vessels and bathes tissues directly (more primative)

22 plasma Liquid part of the blood (55%) Mostly made up of water

23 Portal system A pathway of blood that begins and ends in capillary flow i.e blood flows from the intestine to the liver and then back to the main bloodstream

24 Pulmonary circuit Circuit of blood flow from the heart to the lungs and back to the heart

25 Pulse “Bubble” of blood that passes through arteries after the heart beats

26 Red blood cell Type of cell that contains the hemoglobin Carries oxygen

27 Semilunar valve (aortic valve and pulmonary valve) Valves that prevent backflow of blood

28 Septum

29 Stroke

30 Systemic circuit Circulation of blood from the heart to the body tissues and then back to the heart again.

31 Systole Period of contraction during a heartbeat

32 Tissue fluid Fluids surrounding cells Contain materials that must be diffused into the cells Contain waste materials (from cells) that must be removed

33 Vein

34 Vena cava

35 Ventricle

36 Venule Smallest branching of a vein. Blood enters these from the capillaries

37 White blood cell


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