InterviewSolution
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InterviewSolution
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A vein possesses a larger lumen becauseA. tunica media and tunica externa form a single coatB. tunica interna and tunica media form a single coatC. tunica interna, tunica media and tunica externa are thinD. tunica media is a thin coat |
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Answer» Correct Answer - D (d) The tunica medi a comparatively thin in the veins making a large lumen in veins. Basically each artery and vein consists of three layers, an inner lining of squamous endothelium, the tunica interna, a middle layer of smooth muscle and elastic fibre, the tunica media and an external layer of fibrous connective tissue with collagen fibres, the tunica externa. |
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