In: Anatomy and Physiology
Discuss the physical differences between veins and arteries that give them their unique physiological differences. Be sure to discuss things like elastic fibers and other important structural components. At least 300 words
Answer:
Physical (Physiological) differences between veins and arteries:
Arteries |
Vein |
Arteries carry pure (oxygenated ) blood to the different parts of the body and organs |
Veins carry impure (deoxygenated) blood to the heart. |
Arteries walls are thick, rigid and muscular |
Venous walls are thin and easily collapsible |
Thick walled arteries consists of three layers of tunica |
Veins have thin walled and comparatively wider lumen |
Arteries are red in colour |
Veins are blue in colour |
Arterial wall "Tinica intima" have simple squamous epithelium |
Venous wall "Tunica externa" consists of elastic connective tissue and less elongated endothelial cells |
Tunica media of arteries are muscular |
Tunica media of veins are less muscular |
Arteries are flexible |
Veins are comparatively less flexible |
There are no valves in arteries |
Valves are present in veins for unidirectional movement of blood |
Arteries are deeply positioned within body |
Veins are positioned closer to the surface of skin |
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