Blood Vessels Flashcards

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1
Q

do arteries carry blood towards or away from the heart?

A

(pulmonary artery) away

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2
Q

do veins carry blood towards or away from the heart?

A

(pulmonary vein) towards

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3
Q

what is the job of the capillaries?

A

for the transport of substances, exchange of materials at tissues

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4
Q

what blood vessel has valves?

A

v eins = v alves

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5
Q

arteries adaptations

A
  • carries blood at high pressure
  • small lumen, thick muscular walls
  • walls have elastic fibres so they can stretch
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6
Q

capillary adaptations

A
  • only one cell thick to maximise diffusion
  • small lumen
  • very narrow
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7
Q

veins adaptations

A
  • large lumen
  • thin walls
  • blood carried at low pressure
  • has valves
  • valves prevent backflow of blood
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