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Anatomy > Blood Vessels > Flashcards

Blood Vessels Flashcards

1
Q

Which blood vessels carry blood away from the heart

A

Veins

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2
Q

Which blood vessels carry blood to the heart

A

Arteries

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3
Q

Which blood vessels carry blood under high pressure

A

Arteries

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4
Q

Which blood vessels control blood flow into capillaries

A

Arterioles

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5
Q

Which blood vessels have only few smooth muscle fibers

A

Arterioles

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6
Q

What closes off an Arteriole to a capillary

A

Precapillary sphincters

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7
Q

What connects an arteriole to a venule

A

Metaterioles

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8
Q

Which blood vessels can move blood directly into the vein without going into the capillary bed

A

Metaterioles

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9
Q

Which blood vessels have the smallest diameter

A

Capillaries

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10
Q

What are sinusoids

A

Leaky capillaries

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11
Q

Which blood vessels are 7-8 microns thick and are semipermeable

A

Capillaries

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12
Q

What causes precapillary sphincters to relax

A

Decrease in cell oxygen and increase in carbon dioxide

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13
Q

What is the pressure of water flowing inside

A

Hydrostatic pressure

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14
Q

Which blood vessels serve as a blood reservoir

A

Veins

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15
Q

What are the three layers of an artery

A

Endothelial lining
Middle smooth muscle and elastic tissue
Outer connective tissue

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16
Q

Which blood vessels contains the most blood

A

Small Veins and venules

17
Q

What is formed by the anterior and posterior cerebral arteries and join the internal carotid arteries

A

Circle of Willis

Anatomy (6 decks)

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