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Circulatory Network

Questions

QuestionAnswer
What are the 3 types of Blood Vessels? 1. Arteries; 2. Veins; 3. Capillaries
What is the function of Arteries? carry OXYGENATED blood AWAY from the Heart
What are the tissue layers of the Artery? 1. Tunica Interna; 2. Tunica Media; 3. Tunica Externa
What is the composition of the Tunica Interna? Simple Squamous Epithelium (Endothelium) over thin layer of Elastic Connective Tissue
What is the function of the Tunica Interna? prevent TRAUMA to Blood Cells
What is the composition of the Tunica Media? Elastic Fibers over Circular Smooth Muscle
What is the function of the Tunica Media? involved in Vasoconstriction
What is the composition of the Tunica Externa? Elastic & Collagenous Fibers
What is the benefit of Elastic Fibers within the Tunica? Strengthen in order to prevent Aneurysm (widening) and Rupture
What are Arterioles? the SMALLEST Arteries
What is the function of Veins? carry DEOXYGENATED blood TOWARD Heart
What are the tissue layers of Veins? 1. Tunica Interna; 2. Tunica Media; 3. Tunica Externa
How does the Tunica Interna of Veins DIFFER from that of Arteries? LESS Connective Tissue than Arteries of similar size
How does the Tunica Media of Veins DIFFER from that of Arteries? LESS Smooth Muscle than Arteries
How does the Tunica Externa of Veins DIFFER from that of Arteries? slightly THICKER than Arteries
Is there a difference in blood pressure between Veins and Arteries? Veins have LOWER blood pressure than Arteries
What type of Blood Vessels are largest in diameter? 1. Veins; 2. Arteries
Which Blood Vessels have the thickest wall in total? Arteries - to prevent Aneurysm
Which type of Blood Vessels are collapsible? Veins
What are Venous Valves? 2 Endothelial Flaps which prevent back flow - especially in Veins BELOW Heart
What are Capillaries? MICROSCOPIC vessels carrying blood between Arterioles and Venules
What are Venules? the SMALLEST Veins
Capillaries contain how much of the body's blood supply? 10% at one time, capable of containing 100%
How many tissue layers do Capillaries have? 1 = Tunica Interna --> Simple Squamous Epithelium
What is the function of Capillaries? permits DIFFUSION of O2/CO2, Nutrients, and Wastes to/from adjacent tissue cells
What is the main function of the Circulatory System? exchange of O2 and CO2, nutrients and wastes in tissues
What is the function of Arterioles? drop off O2 to the Capillaries
What is the function of Venules? to remove CO2 and Wastes from Capillaries
Created by: kristel387