BIOL 2402 Lab PPT The Cardiovascular System Blood

BIOL 2402 Lab PPT The Cardiovascular System: Blood Vessel Anatomy 43 items to know Chapter 19, Cardiovascular System - Blood Vesel 1

Specific Arteries & Veins Will be on diagrams for this Lab Exam and will be on specimen pictures for our Dissection Exam Chapter 19, Cardiovascular System - Blood Vessel 2

Things to Know: Arteries & Veins listed: know your right from left. Veins Arteries § § § § Abdominal aorta Aortic arch Ascending aorta Brachiocephalic artery/trunk Common carotid artery Common iliac artery External iliac artery Femoral artery Internal iliac artery Renal artery Subclavian artery Thoracic aorta Vertebral artery § § § § Brachiocephalic vein Common iliac vein External jugular vein Femoral vein Great saphenous vein Hepatic portal vein Hepatic vein Inferior vena cava Internal iliac vein Internal jugular vein Renal vein Splenic vein Subclavian vein Superior mesenteric vein Superior vena cava Chapter 19, Cardiovascular System - Blood Vessel 3

brachiocephalic Chapter 19, Cardiovascular System - Blood Vessel 4

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Things to Know: Recognize the basic differences between: § Arteries vs. Veins vs. Capillaries § Arterioles vs. Venules § Elastic vs Muscular arteries § Tunica interna (intima) § Tunica media § Tunica externa (adventia) § Continuous, fenestrated, & sinusoidal capillaries § Pericytes Chapter 19, Cardiovascular System - Blood Vessel 12

Generalized Structure of Blood Vessels Chapter 19, Cardiovascular System - Blood Vessel 13 Figure 19. 1 b

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A = Elastic artery Notice the elastic fibers in between the sheets of muscle fibers B – Muscular artery Notice the scarcity of elastic fibers between the muscle fibers Chapter 19, Cardiovascular System - Blood Vessel 22

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Tunics § Tunica media § Circular arranged sheets of smooth muscle fibers and elastic fibers – thickest tunic in arteries § Regulated by sympathetic nervous system § Contracts/relaxes to control blood flow through vasoconstriction/vasodilation of vessels Chapter 19, Cardiovascular System - Blood Vessel 26

Wall of Aorta Chapter 19, Cardiovascular System - Blood Vessel 27

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