Bio Paper 1 and 2

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7 Terms

1
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Capilaries

Allow in the transfer of nurtients, oxygen, and hormones

2
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Luemn for Capilaries

Small Diameter to allow for passge of only a single red blood cell at a time (optimal exchange

3
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Capilary Walls

Made of only a single layer of cells to minimize the diffusion distance for permeable materials. Also, surrounded by a basement membrane that is permiable to nessisary materials

4
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Fenstraions

Pores aid in the transport of materials between tissue and blood

5
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Arteries

Narrow Lumen (maintain high blood pressure)

Thick Wall (prevent rupture)

More Muscle and Elastic Fibers

No Valves

Away from heart

6
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Veins

Wide Lumen (max blood flow)

Thin wall

Less Muscle and Elastic Fibers

Has Valves

To heart

7
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