Lecture 7PDF

Lecture 7PDF - Unit #5 Circulatory System Intro & Blood...

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Unit #5 Circulatory System Intro & Blood
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Circulatory System Intro The circulatory system is made up of: 1. Cardiovascular system Heart Blood Vessels Blood 2. Lymphatic system Vessels Lymphatic Fluid Fig. 21.1 Fig. 19.1
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The Cardiovascular System • Because humans are large multi-cellular organisms a system is needed to distribute critical cargo (gases, nutrients) throughout the body – From external environment to the tissues, between tissues and from the tissues to the external environment • This is accomplished by the heart, blood vessels and blood
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Blood is a specialized connective tissue Contains: 1. Ground substance (fluid) à plasma 2. Formed elements à cells of the blood Withdraw blood and place in tube. Plasma 55% of whole blood Least dense component Buffy coat Leukocytes and platelets <1% of whole blood Erythrocytes 45% of whole blood Most dense component Centrifuge the blood sample. Formed
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This note was uploaded on 09/28/2011 for the course BIOL 301 taught by Professor Pickard during the Spring '09 term at Waterloo.

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Lecture 7PDF - Unit #5 Circulatory System Intro & Blood...

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