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5 Written questions

5 Matching questions

  1. Elastic (Conducting) Arteries
  2. What is Resistance more important in influencing local blood flow?
  3. What is Blood Flow inversely proportional with?
  4. Angiotensin II
  5. What is Short Term control of blood pressure?
  1. a Kidney release of renin generates angiotensis II, which causes vasoconstriction. Increase BP.
  2. b It is easily changed by altering blood vessel diameter.
  3. c Neural and hormonal controls - counteract functuations in blood pressure by altering peripheral resistance.
  4. d Peripheral Resistance (R). - If R increases, blood flow decreases.
  5. e Thick walled arteries near the heart. Act as pressure reservoirs - expand and recoil as blood is ejected from the heart.
    Conduct blood from the heart into Muscular Arteries.

5 Multiple choice questions

  1. Collagen fibers that protect and reinforce vessels.
  2. Radial artery.
  3. Low blood pressure, systolic pressure below 100 mg Hg. Often associated with long life and lack of cardiovascular illness.
  4. The friction between blood and blood vessel walls.
  5. Blood hydrostatic pressure gradient. - If P increases, BF speeds up.

5 True/False questions

  1. VenulesFormed when capillary beds unite. Allow fluids and WBC's to pass from the bloodstream to tissues. Collect blood from capillaries and pass it on to veins.

          

  2. CapillariesMicroscopic blood vessels, walls of thin tunica intima, one cell thick. Size only allows one RBC at a time; Permit exchange of nutrients and wastes between blood and interstitial fluid.

          

  3. tunics that compose the Arteries and VeinsTunica Interna (innermost), Tunica Media (middle), Tunica Externa (outermost).

          

  4. factors that remain relatively constant in vascular resistanceBlood viscosity, total blood vessel length, blood vessel diameter.

          

  5. Mean Arterial Pressure(MAP), average pressure in the arteries.

          

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