What layer of skin contains blood vessels and nerves?

What layer of skin contains blood vessels and nerves?

• A. The epidermis
• B. The dermis
• C. The subcutaneous layer
• D. The hypodermis

Answer: (B)

The correct response is grounded in the anatomical structure of the skin. The dermis is the middle layer of the skin, situated beneath the epidermis and above the subcutaneous layer. It is composed of connective tissue and is rich in blood vessels, nerves, hair follicles, and glands. The presence of blood vessels in the dermis plays a crucial role in thermoregulation and the nourishment of skin cells, while the nerves are responsible for sensory functions, allowing the skin to detect touch, pain, and temperature. Additionally, the dermis contains structures such as sebaceous (oil) glands and sweat glands that are vital for skin health and function. In contrast, the epidermis, which is the outermost layer, primarily serves as a protective barrier and does not contain blood vessels or nerves; it receives nutrients through diffusion from the dermis. The subcutaneous layer, also known as the hypodermis, is primarily composed of adipose tissue, which provides insulation and cushioning, and it supports the dermis but does not house the blood vessels and nerves that are characteristic of the dermis itself.

The correct response is grounded in the anatomical structure of the skin. The dermis is the middle layer of the skin, situated beneath the epidermis and above the subcutaneous layer. It is composed of connective tissue and is rich in blood vessels, nerves, hair follicles, and glands.

The presence of blood vessels in the dermis plays a crucial role in thermoregulation and the nourishment of skin cells, while the nerves are responsible for sensory functions, allowing the skin to detect touch, pain, and temperature. Additionally, the dermis contains structures such as sebaceous (oil) glands and sweat glands that are vital for skin health and function.

In contrast, the epidermis, which is the outermost layer, primarily serves as a protective barrier and does not contain blood vessels or nerves; it receives nutrients through diffusion from the dermis. The subcutaneous layer, also known as the hypodermis, is primarily composed of adipose tissue, which provides insulation and cushioning, and it supports the dermis but does not house the blood vessels and nerves that are characteristic of the dermis itself.