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5 Written questions

5 Matching questions

  1. Venules
  2. factors that aid in venous return
  3. Vascular anastomoses
  4. Sinusoidal Capillaries
  5. artery routinely used to take pulse
  1. a Have large fenstrations and intercellular clefts for the greatest permeability, even allowing passage of blood cells.
  2. b Respiratory pump, muscular pump and vasconstriction of veins under sympathetic control.
  3. c Merging blood vessels, more common in veins than arteries. Provdes alternate pathways (collateral channels) for blood to reach a given body region. If one branch is blocked, the collateral channel can supply the area with adequate blood supply.
  4. d Formed 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.
  5. e Radial artery.

5 Multiple choice questions

  1. Neural and hormonal controls - counteract functuations in blood pressure by altering peripheral resistance.
  2. It is easily changed by altering blood vessel diameter.
  3. Kidney release of renin generates angiotensis II, which causes vasoconstriction. Increase BP.
  4. Have many fenestrations (pores) that allow quick fluid and larger solute exchange.
  5. Automatic adjustment of blood flow to each tissue in proportion to its requirements at any given point in time.

5 True/False questions

  1. HypertensionTemporary low BP and dizziness when suddenly rising from a sitting or reclining position.


  2. Chronic HypotensionHint of poor nutrition and warning sign for Addision's disease (adrenal isnsufficiency) or hypothyroidism.


  3. What is directly proportional to Blood Flow (F)?Reflects two factors of the arteries close to the heart. The elasticity (compliance or distensibility), and the amount of blood forced into them at any given time.


  4. AngiogenesisOccurs when short term autoregulation cannot meet tissue nutrient requirements. Either the number of vessels to a region increases or existing vessels enlarge.


  5. What is Blood Flow inversely proportional with?Blood hydrostatic pressure gradient. - If P increases, BF speeds up.