Term
| Explain the functions of the circulatory system |
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Definition
1. delivers oxygen and nutrients to deep cells
2. removes waste & CO2 from deep cells |
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Term
| Name the different circulatory systems of invertebrates. |
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Definition
| No circulatory system, open circulatory sytem, closed circulatory system |
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Term
| Explain the difference btwn open and closed circulatory systems |
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Definition
open - hemolymph, few vessels, hemolymph outside of vessels, in anthropods
closed - blood, vessels, blood only in vessels, ex. earthworms |
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Term
| Describe 2-chambered heart. |
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Definition
| 1 atrium, 1 ventricle, single-loop, found in fish |
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Term
| Describe 3-chambered heart |
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Definition
| 2 atria, 1 ventricle, double loop, bad b/c it mixes 02 rich blood w/ 02 poor blood, found in some reptiles |
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Term
| Describe 4-chambered heart. |
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Definition
| 2 atria, 2 ventricles, no mix of bad and good 02 blood, found in mammals |
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Term
| Describe the pathway of blood through the heart. |
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Definition
| body-rt atrium-rt ventricle-pulmonary trunk-lungs-lft atruim-lft ventricle-aorta-back to body |
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Term
| Name the functions of blood. |
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Definition
transports nutrients, gas, and waste.
serves as a buffer to maintain pH levels
clotting and defense |
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Term
| Name the components of blood. |
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Definition
| red blood cells, white blood cells, platelets, plasma |
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