Bio47S11HO21

Bio47S11HO21 - Biology 47 Anatomy Lecture 21 Cardiovascular System Vasculature Cardiovascular System Function Components a b Vasculature Blood

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1 Biology 47 - Anatomy Lecture 21 Cardiovascular System - Vasculature Cardiovascular System Function : Components : a. b. Vasculature: Blood Vessels Major vessels identified by direction of : a. Arteries : Carry blood : b. Veins : Carry blood : Vascular Histology : 3 Layers (Tunics) 1. Tunica Interna (Intima) : Internal Layer Consists of : a. Endothelial cells: b. 2. Tunica Media : Middle Layer Function : Adjust blood: 3. Tunica Externa (Adventitia): Outside Layer Function : Arteries : “ Pressure Vessels • Located on the OUTGOING side of : Carry: Pressures fluctuation exist between: Systolic pressure: Diastolic pressure : Pressure fluctuations = Pressures decrease with:
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2 • Most arteries carry : Exception: Artery Histology : a. Tunica Interna (Intima) : High concentratinon of : Functions : Vessel can adjust to: 1. Expand following : 2. Recoil during : Characteristic: Tunica interna : b. Tunica Media : Thick : High concentration of : Function : Veins : “ Capacitance Vessels • Storage Vessels: Carry very : Pressure range : No pressure fluctuations = Most veins cary : Exception: Vein Histology:
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This note was uploaded on 09/02/2011 for the course BIO 47 taught by Professor Peters during the Spring '11 term at West Valley.

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Bio47S11HO21 - Biology 47 Anatomy Lecture 21 Cardiovascular System Vasculature Cardiovascular System Function Components a b Vasculature Blood

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