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5 Written questions

5 Matching questions

  1. Angiotensin II
  2. Adrenal Medulla Hormones
  3. Vascular anastomoses
  4. Capillaries
  5. Chronic Hypotension
  1. a Kidney release of renin generates angiotensis II, which causes vasoconstriction. Increase BP.
  2. b Microscopic 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. c Norepinephrine and Epinephrine increase blood pressure - cause vasoconstriction and increase cardiac output.
  4. d 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.
  5. e Hint of poor nutrition and warning sign for Addision's disease (adrenal isnsufficiency) or hypothyroidism.

5 Multiple choice questions

  1. Causes BP to drop by inhibiting ADH.
  2. Blood viscosity, total blood vessel length, blood vessel diameter.
  3. In all tissues except for cartilage, epithelia, cornea and lens of eye.
  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. Formed when venules converge; Composed of three tunics; Return blood to the heart, facilitated by valves in veins and in limbs.

5 True/False questions

  1. Antidiuretic Hormone(ADH)-(Vasopressin) - Causes intense vasoconstriction in cases of extremely low BP. Increases BP.


  2. When is Angiogenesis common in the heart?In the Aorta.


  3. What is directly proportional to Blood Flow (F)?Blood hydrostatic pressure gradient. - If P increases, BF speeds up.


  4. Tunica MediaFormed 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. Acute HypotensionTemporary low BP and dizziness when suddenly rising from a sitting or reclining position.