Renegade Skin


The Contribution of the Integumentary System to the Various Body Systems

Did you know that the Integumentary system is connected to all the other systems of the body? As an esthetician working on the skin, it’s important to know how the skin affects the whole body, so that you can be aware of how the treatments you provide may affect the skin and in turn have some measure of effect on other body systems.

All Body Systems

The Skin and hair provide barriers that protect all internal organs from damaging agents in the external environment. Without skin, the body would not survive.

Sweat glands and blood vessels in the skin help to regulate body temperature which is needed for proper functioning of internal organs and body systems.

Skeletal System

The skin helps to activate vitamin D which is needed for proper absorption of dietary calcium and phosphorus to build and maintain bones of the skeletal system.

Muscular System

Through activation of vitamin D the skin helps provide calcium ions which are needed for muscle contractions. The skin also rids the body of heat produced by muscular activity (through the sweat glands and blood vessels).

Nervous System

Nerve endings in the skin and subcutaneous tissue provide input to the brain for touch, pressure, thermal, and pain sensations via the nervous system.

Endocrine System

Keratinocytes in the skin help to activate vitamin D, initiating it’s conversion to calcitriol, a hormone that aids absorption of dietary calcium and phosphorus.

Cardiovascular System

Local chemical changes in the dermis cause widening and narrowing of the skin’s blood vessels which helps adjust blood flow to the skin.

Lymphatic System and Immunity

The skin is the first line of defense in immunity by providing mechanical barriers and chemical secretions that discourage penetration and growth of microbes. The Langerhans cells in the epidermis participate in immune responses by recognizing and targeting foreign antigens for destruction by immune system cells.

Respiratory System

Hairs in the nose filter dust particles and other foreign objects from inhaled air reducing risk of clogging lungs.

Stimulation of pain from nerve endings in the skin can alter breathing rate.

Digestive System

The skin helps to activate vitamin D to become the hormone calcitriol, which promotes absorption of dietary calcium and phosphorus in the small intestine.

Urinary System

Kidney cells receive partially activated vitamin D hormone from the skin and convert it to calcitriol.

Some waste products are excreted from the body in sweat, contributing to the excretion by the urinary system.

Reproductive System

Nerve endings in the skin and subcutaneous tissue respond to erotic stimuli, thereby contributing to sexual pleasure.
Suckling of a baby stimulates nerve endings in the skin leading to milk production by the mammary glands.
During pregnancy the integument stretches to accommodate the growing fetus.

You can see how important all these functions are to the body, and how important it is to have healthy functioning skin to assist these functions so that the body can be in homeostasis.

A good place to start learning about the skin is in our Amazing Cell course. In this course you will learn about the cells that make up the skin, and the nutrition necessary to have healthy cells, and in turn, healthy skin.

We hope you will join the New Wave of Cutting Edge Renegade Estheticians!

~Cassandra Lanning

The Renegade Esthetician