What is a persons skin made up of?

The skin is the largest organ of the human body, covering a surface area of approximately 2 square meters (22 square feet). It is composed of three layers:

1. Epidermis: This is the outermost layer of the skin, and it is made up of keratinized cells (dead skin cells) that protect the body from the environment. The epidermis also contains pigment cells (melanocytes) that give the skin its color.

2. Dermis: The dermis is the middle layer of the skin, and it is made up of connective tissue, blood vessels, and nerve endings. The dermis also contains hair follicles, sweat glands, and sebaceous glands.

3. Hypodermis (or Subcutaneous Layer): The hypodermis is the innermost layer of the skin, and it is made up of fat cells that insulate the body and provide cushioning.

The skin also contains a number of other structures, including:

* Nails: These are hard, keratinized structures that protect the tips of the fingers and toes.

* Hair: Hair is made up of keratin and grows from follicles in the dermis.

* Sweat glands: These glands secrete sweat, which helps to cool the body.

* Sebaceous glands: These glands secrete sebum, which lubricates the skin and hair.

The skin is a complex and dynamic organ that plays a vital role in the body's overall health. It protects the body from the environment, regulates body temperature, and allows us to sense our surroundings.