Cardiovascular System

  1. Mean effective filling pressure of the heart ventricle is substantially affected by:
    a. Ventricular contractility and heart rate
    b. Blood volume
    c. Intrathoracic pressure during inspirium
    d. Ventricular systolic compliance
    • a. Ventricular contractility and heart rate
    • b. Blood volume
    • c. Intrathoracic pressure during inspirium
  2. In the condition of constant flow in the system of tubes:




    A. The lateral inside pressure decreases if the diameter of the tube is reduced
  3. The major part of the blood volume is usually in:




    B. Large veins
  4. The important property of the Purkynje fibres is:




    A. Fast conductance of impulses
  5. Mean rate of blood flow in the aorta is:




    E. Inversely related to the diameter of aorta
  6. Peripheral vascular resistance is:




    B. Resistance to blood flow in the systemic vasculature
  7. Decrease of the transmural pressure in the carotic sinus results in:




    B. Increase of peripheral vascular resistance
  8. According to "myogenic mechanism" of the blood flow autoregulation the increase of the blood pressure in arterioles results in:




    B. Increase of the peripheral vascular resistance
  9. Adrenergic stimulation of the heart results in:




    B. Increase of the coronary blood flow
  10. The heart work almost equals:




    D. Area of pressure / volume relationship o the ventricle
  11. The main cardiac and vasomotoric center is located in:



    A. Pons and medula oblongata
  12. In normal conditions is in capillaries:
    a. 25% of the total blood volume
    b. The small volume of blood (approx. 5%) only
    c. Very rapid blood flow
    d. The blood flow is more rapid than in arterioles
    e. Very small hematocrit
    b. The small volume of blood (approx. 5%) only
  13. The is first heart sound is:




    E. Isovolumic contraction
  14. P vawe in ECG is:




    C. At the beginning of atrial contraction
  15. Vasoconstriction activity of sympaticus is decreased after stimulation of




    E. Carotic sinus
  16. Cardiac output in resting person is approx:




    A. 5.25 l/min
  17. Normal man has in 100 ml of blood approx.:




    D. 16 g of Hb
  18. The regional blood flow is regulated mainly by the local metabolic activity in




    C. Muscle
  19. Cardiac index is the relation of:




    D. Cardiac output and body surface area
  20. The increase of pressure in carotid sinus results in:




    B. Reflex bradycardia
  21. The common features of cardiac and skeletal muscles are:
    a. Both are striated
    b. Both contain actin and myosin
    c. Strength of contractin is related to the muscle length
    d. Both have intrinsic rythmicity
    • a. Both are striated
    • b. Both contain actin and myosin
    • c. Strength of contractin is related to the muscle length
Author
Marine
ID
302255
Card Set
Cardiovascular System
Description
Cardiovascular System
Updated