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Chapter 42 - Part 1
Unit Four
9
Biology
Undergraduate 2
12/02/2014

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Term
Diffusion
Definition
The transport of a substance between a barrier, from a more concentrated to less concentrated substance
Term
Hemolymph
Definition
Open circulatory system, the liquid that bathes the tissues
Term
Blood
Definition
Plasma and cellular
Term
Plasma
Definition
Water and dissolved material
Term
Open vs. Closed
Definition
Open- Hemolymph bathes the organs and tissues and theres no difference between the circulating and interstitial fluid
Closed- Blood is confined to vessels and doesn't mix with interstitial fluid
Term
Arterioles
Definition
Conveys blood between arteries and capillary bed
Term
Venules
Definition
Conveys blood between capillaries and veins
Term
Single vs. Double
Definition
Single- 2 heart chamber, pumps low O2 to the gills
Double- 2 circuit
Term
Plasma
Definition
95% water 5% dissolved material
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