HISTOLOGY
INTEGUMENTARY SYSTEM SKIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The dermis has a blood supply
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The epidermis is close to the core of the body
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The dermis has access to DNA
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The epidermis is designed to grow appendages since it is built like soil.
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Detailed explanation-1: -Your dermis consists of two layers: Reticular dermis: The reticular layer is the bottom layer of your dermis. It’s thick, and it contains blood vessels, glands, hair follicles, lymphatics, nerves and fat cells.
Detailed explanation-2: -The skin appendages include sweat glands, nails, and the pilosebaceous unit of the skin, comprised of the hair shaft, hair follicle, sebaceous gland, and arrector pili muscle-these appendages derive from a down growth of the epidermis beginning in the third month of fetal life.
Detailed explanation-3: -Answer and Explanation: True. The epidermis does not contain any blood vessels or nerve fibers, it only contains keratinized epithelial cells that are constantly replaced, they do not get many nutrients, and anything they get is through diffusion.