EPITHELIUM
EPITHELIAL TISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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that it contains many blood vessels.
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that it does not contain any blood vessels.
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that it is made of many layers.
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that it secretes mucous.
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Detailed explanation-1: -Epithelial tissues do not contain blood vessels and as such are avascular. Connective tissues are usually highly vascular and so the nearby connective tissue provides essential nutrients (from the blood) to the epithelial tissue.
Detailed explanation-2: -Epithelial tissue is avascular, meaning that it does not have blood vessels directly supplying the tissues with nutrients. Instead, the cells and tissues below the epithelial tissue act as a relay for the nutrients.
Detailed explanation-3: -Epithelial tissue does not contain blood vessels to prevent bleeding because this tissue is constantly exposed to mechanical and chemical wear and tear.
Detailed explanation-4: -The cornea is the only living tissue in the human body that does not contain any blood vessels.
Detailed explanation-5: -The correct option is A True. Squamous Epithelial: Squamous Epithelial is the simple epithelium, and the lumen of blood arteries is lined with a single layer of thin, flattened epithelial cells. They have a slick surface that allows blood cells to flow freely across the artery.