HESI A&P Circulatory System

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karla14449
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196485
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HESI A&P Circulatory System
Updated:
2013-01-29 23:18:07
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HESI Circulatory System
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Circulatory system review for HESI exam
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  1. Whole blood consists of approximately __% plasma and __% formed elements such as erythrocytes, leukocytes, and platelets. 
    • 55%
    • 45%
  2. Erythorocytes
    Red Blood Cells
  3. Leukocytes
    White Blood Cells
  4. Platelets
    aka Thromobocytes, important for the clotting of blood.
  5. All formed elements are derived from stem cells in ____ _____ ______.
    Red Bone Marrow
  6. Erythrocytes are modified for transport of ________.
    Oxygen
  7. Oxygen is bound to the pigmented protein_________.
    Hemoglobin
  8. White blood cells are active in _________ and ________ formation.
    • Phagocytisis
    • Antibody
  9. Which leukocytes are phagocytic?
    Neutrophils and Monocytes
  10. What leukocyte is responsible for antibody formation?
    Lymphocyte
  11. Platelets are active in the process of _____ _______.
    blood clotting
  12. Blood serves to :
    • Transport oxygen & nutrients to blood cells
    • To carry away carbon dioxide & metabolic wastes.
  13. _______ contains approximately 10% proteins, ions, nutrients, waste products, and hormones, which are dissolved or suspended in water.
    Plasma
  14. The ______ is a double pump that sends blood to the lungs for oxygenation through the _________ circuit and to the remainder of the body through the ________ circuit.
    • heart
    • pulmonary
    • systemic
  15. Circulation of blood through heart:
    • Superior/Inferior Vena Cava
    • Right Atrium
    • Triscuspid Valve
    • Right Ventricle
    • Pulmonary Semi-Lunar Valve
    • (Lungs) Obtains Oxygen
    • Pulmonary Veins
    • Left Atrium
    • Biscuspid Valve
    • Left Ventricle
    • Aortic Semi-Lunar Valve
    • Aorta
    • All other body parts
  16. Which heart areas contain OXYGENATED blood?
    Left side
  17. Which heart areas contain DEOXYGENATED blood?
    Right side
  18. The heart has an intrinsic beat initiated by the __________ node and transmitted along a conduction system through the myocardium.
    sinoatrial
  19. ECG (Electrocardiogram)
    measures the wave of electrical activity in the heart.
  20. The ______ cycle is the period from the end of one ventricular contraction to the end of the next ventricular contraction.
    cardiac
  21. Systole
    the contraction phase of the cardiac cycle
  22. Diastole
    The relaxation phase of the cardiac cycle
  23. Arteries carry blood _____ from the heart.
    away
  24. Veins carry blood _____ the heart.
    towards
  25. What is the function of the capillaries?
    is where the exchanges take place between the blood and surrounding tissues, exchanging water, nutrients, and waste products.
  26. The systemic arteries begin with the ______, which sends branches to all other parts of the body.
    aorta
  27. Arteries get ______ the further they get from the heart.
    thinner
  28. The smaller arteries are called...
    arterioles
  29. The veins parallel the arteries and usually have the same ____.
    name
  30. The walls of the arteries are thick and ______, and they carry blood under ____ pressure.
    • elastic
    • high
  31. Vasoconstriction and Vasodilation result from _______ & _______ of smooth muscle in the arterial walls. These changes influence the blood pressure and blood distribution to the tissues. 
    Contraction & Relaxation
  32. The walls of veins are ______ and less elastic  than those of the arteries, and carry blood blood under _______ pressures.
    • thinner
    • lower
  33. If the deflection of the ECG DOES NOT represent the systole and diastole of the heart chambers, then what does ECG represent?
    It represents the electrical activity that precedes, comes before, the contraction-relaxation events of the myocardium. 

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