What is the middle layer of the skin that contains hair follicles, sweat glands, and blood vessels called?

The correct answer is the dermis, which is the middle layer of the skin. This layer plays a vital role in maintaining the skin's structure and function. It is composed primarily of connective tissue, which provides elasticity and strength, and is home to essential structures such as hair follicles, sweat glands, and blood vessels. These components are crucial for thermoregulation, sensation, and the overall health of the skin.

The epidermis is the outermost layer and serves as a protective barrier but does not contain hair follicles or sweat glands. The hypodermis, also known as the subcutaneous layer, lies beneath the dermis and primarily consists of fat and connective tissue, providing insulation and cushioning for underlying structures. The stratum corneum is a specific layer within the epidermis that consists of dead skin cells and also does not contain the structures mentioned in the question. Understanding the distinct functions and characteristics of these skin layers helps in comprehending skin health and related treatments.