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5 Written questions

5 Matching questions

  1. factors that aid in venous return
  2. Fenestrated Capillaries
  3. Systemic Pressure in the right atrium
  4. Acute Hypotension
  5. the three important sources of vascular resistance
  1. a Important sign of circulatory shock.
  2. b Respiratory pump, muscular pump and vasconstriction of veins under sympathetic control.
  3. c Have many fenestrations (pores) that allow quick fluid and larger solute exchange.
  4. d 0mm Hg.
  5. e Blood viscosity, total blood vessel length, blood vessel diameter.

5 Multiple choice questions

  1. Formed when venules converge; Composed of three tunics; Return blood to the heart, facilitated by valves in veins and in limbs.
  2. Blood hydrostatic pressure gradient. - If P increases, BF speeds up.
  3. Smooth muscle and elastic fiber layer, regulated by sympathetic nervous system.
  4. Occurs when short term autoregulation cannot meet tissue nutrient requirements. Either the number of vessels to a region increases or existing vessels enlarge.
  5. 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.

5 True/False questions

  1. Muscular (Distributing) ArteriesThick 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.


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


  3. HypothensionTemporary low BP and dizziness when suddenly rising from a sitting or reclining position.


  4. funciton of CapillariesExchange of gases, nutrients, wastes, hormones etc.


  5. Tunica Media's functionEndothelial layer that lines the lumen of all vessels.


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