What is the integumentary system? And what are its main functions?

What is the integumentary system? The integumentary system is the body’s outer layer of skin, hair, and nails. It is a protective wall and provides insulation from environmental factors and elements. This system is a universal term for the external and internal organs covering the body’s surface. It includes skin, hair, nails, and glands and plays a vital role in maintaining our health.

The primary function of this system is to protect the body from external factors and elements such as dirt and water, to maintain temperature, regulate blood flow and help the immune system to perform correctly.

The integumentary system is a complex and fundamental organ system in the body. It includes the skin, hair, nails, and glands that produce sweat and oil on the external layer of tissues. These tissues protect the body from infection and wound and regulate physical processes. This scheme contains the skin, nails, hair, and exocrine glands.

What are the Types of the integumentary system?


The skin is the most significant and visible part of the integumentary system. The skin protects the body from external injuries by trapping moisture and protecting against bacteria and other contaminants. The skin can also sense changes in temperature and humidity and relay this information to the nervous system. Melanin is a natural pigment that stretches your skin its color. It’s produced in the cells called melanocytes.

The skin is the largest organ of humans, with a total area of about twenty square feet. The skin protects the body from microbes and the elements, helps regulate body temperature, and permits the feelings of touch, heat, and cold.

What are the 3 layers of skin? Although there are seven layers that skin contains from which three major subdivisions. The furthest separation of skin is known as the epidermis. The epidermis contains five of the seven layers. The additional binary partitions of the skin include the dermis and the subcutis. Skin covers the body’s entire external surface. It comprises mainly three layers the epidermis, dermis, and hypodermis. All these vary significantly in their anatomy and function. The seven subdivisions are Stratum cornea, Stratum Lucida, Stratum granulose, Stratum spin sum, Stratum basal, Papillary Layer, and Reticular Layer.


Nails are another central part of the integumentary system. They are vital for eliminating debris from surfaces, such as floors or tables, and gripping objects during climbing or running. Nails are solid, protective structures that cover the upper surface of the fingertips and toes. They are poised of a protein called keratin and grow from the sordid of the nail bed. Nails protect the tips of the fingers and toes from a wound and support fine motor errands such as picking up small objects.


Hair is a different skin organ composed of columns of tightly packed dead keratinocytes found in most body regions. Hair is a significant component of the integumentary system. Hair protects against sunlight and cold weather conditions and keeps sweat away from the eyes and mouth. Hair also helps to trap dirt and other debris, which can eliminate through regular washing. Hairs are slim, thread-like erections that extend from the epidermis. They are unruffled of a protein called keratin and are usually pigmented, which gives them their color.

All parts of the body have hair except for the palms of the hands and soles of the feet. Hairs protect against UV radiation, harm, and hazardous temperatures. They also play an essential role in sensation, covering nerve endings that can detect touch, pressure, and temperature.


Glands are functional units of cells that work in agreement to release material, such as a lubricant or sweat. There are dual types of glands in the body. Endocrine glands do not have a channel system and eliminate their products directly into the bloodstream. In difference, the skin households various exocrine glands with pipes that allow them to stow substances to the epithelial surface. These are exocrine glands.

  • Eccrine sweat gland

These simple, looped, tube-like glands exist throughout the body. The sweat they yield is clear and has little to no oil or scent. Its drive is to cool the body and remove waste by stowing water.

  • Apocrine sweat gland

These glands produce odorous sweat. They are big, branched glands that typically appear in the armpits and genital area. They are not significantly involved in cooling.

  • Ciliary glands

These are adapted apocrine sweat glands situated in the eyelids. Their purpose is to grease the eye and retain it clean.

  • Sebaceous glands

These conceal an oily substance called sebum that oils and protects the skin.

  • Ceruminous glands

These ear canal glands produce ear wax and are also adapted apocrine glands. Ear wax is a sticky substance that defends the ear from water and foreign bodies.

  • Mammary glands

There are binary mammary glands on the front chest wall. The glands produce milk to feed babies in people assigned to females at birth.

Functions of the integumentary system

  • It provides a protective barrier against
  • Mechanical, thermal, and physical injury and hazardous substances.
  • Prevents loss of moisture.
  • Reduces harmful effects of UV radiation.
  • Acts as a sensory organ (touch, detects temperature).
  • Helps regulate temperature.
  • An immune organ to detect infections.
  • The skin and accessory structures perform
  • various essential functions, protecting the body from invasion by
  • Microorganisms, chemicals, and other environmental factors.
  • It prevents dehydration.
  • Acting as a sensory organ.
  • modulating body temperature and electrolyte
  • balance
  • synthesizing vitamin D

Some Conditions that affect the integumentary system


The overproduction of keratin and inflammation of the pilosebaceous unit causes an acne breakout. Acne can have variable morphologies, including comedowns, papules, nodules, and Pustules that vary in appearance and size—various factors related to the Development of acne, such as skin trauma, diet, and pressure. In women, Hormonal acne is typically characterized by flashes involving the jawline. They were flaring with menstrual cycles. Increased androgen circulation also donates to acne, as sebaceous glands make sebum in reaction to androgens, providing a Growth medium for acne.

Athlete’s foot

An athlete’s foot is a fungal infection that causes eager, soreness, and wounds. It is usually caused by wearing shoes that do not allow the skin on the feet to take breaths.

Skin cancer

Skin cancer is a common type of cancer. It can be owing to overexposure to UV radiation from the sun or sunbeds. Skin cancer may seem like a dirty, scaly, and crusty skin cover.

Cold sores

A cold sore is a minor, painful blister on the jaws or around the mouth caused by the herpes simplex virus. Cold sores are transmissible.


Psoriasis is a long-lasting condition that causes the skin to produce new skin cells too rapidly. This leads to the accumulation of scaly, red, and itchy patches of skin.


Ringworm is a fungal infection that causes a ring-shaped Hasty on the skin. It is most mutual on the body, scalp, or feet and transmissible.


The integumentary system contains the dermis, epidermis, hypodermis, associated glands, hair, and nails. In addition to its barrier function, this system performs many intricate procedures such as body temperature regulation, fluid cell maintenance, synthesis of Vitamin D, and detection of stimuli.

Our integumentary system helps to keep our bodies healthy and clean by providing a moist layer of tissue that keeps the body wet. This is done through the production of mucus and oils. An integumentary system is a group of structures and cells covering the body’s external surface. This system includes the skin, hair, nails, and mucous membranes. The integumentary system protects the body from environmental insults and disease. It also helps to regulate body temperature, absorb nutrients, and remove waste products.


Elise Mckay
Elise Mckayhttp://timsale.net
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