A&P II Practical 1 - Vessels

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56 Terms

1
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Layers & Tissue Types: Thick walls with three layers – tunica intima (endothelium), tunica media (thick smooth muscle), tunica externa (connective tissue)

Width of Lumen: Narrow

Valves: Absent

Oxygenation Level: High (except pulmonary arteries)

Primary Function: Carry blood away from the heart under high pressure

Describe the layers & tissue Types, width of lumen, presence/absence of valves, oxygenation level, and function of Arteries.

2
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Layers & Tissue Types: Similar to arteries but with thinner walls and more smooth muscle relative to size

Width of Lumen: Narrower than arteries, adjustable via vasoconstriction and vasodilation

Valves: Absent

Oxygenation Level: High (except in pulmonary circulation)

Primary Function: Regulate blood flow into capillaries via resistance

Describe the layers & tissue Types, width of lumen, presence/absence of valves, oxygenation level, and function of Arterioles.

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Layers & Tissue Types: Single layer of endothelial cells (tunica intima only)

Width of Lumen: Extremely narrow (one RBC at a time)

Valves: Absent

Oxygenation Level: Varies (oxygenated in systemic circulation, deoxygenated in pulmonary circulation)

Primary Function: Gas, nutrient, and waste exchange between blood and tissues

Describe the layers & tissue Types, width of lumen, presence/absence of valves, oxygenation level, and function of Capillaries.

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Layers & Tissue Types: Thin walls with tunica intima and a small amount of smooth muscle (tunica media)

Width of Lumen: Wider than capillaries but narrower than veins

Valves: Absent

Oxygenation Level: Low (except pulmonary venules)

Primary Function: Collect blood from capillaries and begin return to heart

Describe the layers & tissue Types, width of lumen, presence/absence of valves, oxygenation level, and function of Venules.

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Layers & Tissue Types: Thin walls with three layers – tunica intima, thin tunica media (smooth muscle), tunica externa (connective tissue)

Width of Lumen: Wide

Valves: Present (to prevent backflow)

Oxygenation Level: Low (except pulmonary veins)

Primary Function: Return blood to the heart under low pressure

Describe the layers & tissue Types, width of lumen, presence/absence of valves, oxygenation level, and function of Veins.

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Arch of Aorta

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Ascending Aorta

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Descending Aortic Arch

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Thoracic Aorta

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Abdominal Aorta

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Internal Carotid Artery

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External Carotid Artery

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Brachiocephalic Trunk

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Subclavian Arteries

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Celiac Trunk

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Superior Mesenteric Artery

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Gonadal Arteries

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Renal Arteries

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Inferior Mesenteric Artery

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Common Iliac Arteries

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Internal Iliac Arteries

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External Iliac Arteries

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Axillary Arteries

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Brachial Arteries

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Radial Arteries

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Ulnar Arteries

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Femoral Arteries

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Popliteal Arteries

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Anterior Tibial Arteries

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Posterior Tibial Arteries

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Fibular Arteries

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External Jugular Veins

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Internal Jugular Veins

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Subclavian Veins

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Brachiocephalic Veins

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Gonadal Veins

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Renal Veins

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Hepatic Veins

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The hepatic portal vein carries blood into the liver from the digestive organs, while the hepatic vein carries blood out of the liver to the inferior vena cava

What's the difference between the Hepatic Portal vs Hepatic Vein?

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Radial Veins

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Ulnar Veins

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Basilic Veins

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Cephalic Veins

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Medial Antebrachial Vein

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Median Cubital Vein

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Brachial Veins

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Axillary Veins

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Anterior Tibial Veins

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Posterior Tibial Veins

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Fibular Veins

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Popliteal Veins

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Great Saphenous Veins

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Small Saphenous Veins

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Femoral Veins

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External Iliac Veins

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Internal Iliac Veins

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