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kyrabunga kyrabunga
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6 years ago
Blood flow is affected by: (select all that apply)
 
  a. blood viscosity.
  b. blood vessel diameter.
  c. blood pressure.
  d. blood vessel length.
  e. blood composition.
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wrote...
6 years ago
ANS: A, B, C, D
Resistance to flow is generally greater in longer tubes because resistance increases with length but decreases with a wider diameter. Blood flow varies inversely with the viscosity of the fluid. Thick fluids move more slowly and experience greater resistance to flow than thin fluids. In-creased blood pressure decreases blood flow because resistance is increased. Blood volume, not composition, plays a role in blood flow.
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