Actually, the provided "references" are incorrect. The dermis is a single layer of skin tissue located between the epidermis and hypodermis. The question is actually asking about the layers of skin, not layers of dermal tissue. So the correct answer is that skin consists of the epidermis, dermis, and hypodermis.
Here's a breakdown of each layer:
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Epidermis: This is the outermost layer of skin, providing a protective barrier against the environment. It's primarily composed of keratinocytes.
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Dermis: This is the middle layer of the skin. It contains connective tissue, blood vessels, nerve endings, hair follicles, and sweat glands. The dermis gives skin its strength and elasticity.
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Hypodermis: This is the innermost layer of skin, also known as the subcutaneous layer. It's primarily composed of fat and connective tissue, and it helps to insulate the body and cushion organs.
It's important to understand that the dermis itself isn't divided into three distinct layers in the same way that the overall skin structure is.
