What are the 4 main structures of the integumentary system?

The integumentary system consists of the skin, hair, nails, glands, and nerves.

The integumentary system is composed of the following parts:

  • Skin.
  • Skin appendages. Hairs. Nails. Sweat glands. Sebaceous glands.
  • Subcutaneous tissue and deep fascia.
  • Mucocutaneous junctions.
  • Breasts.

Secondly, what are the 7 functions of the integumentary system? Terms in this set (7)

  • Protection. Microorganism, dehydration, ultraviolet light, mechanical damage.
  • Sensation. Sense pain, temperature, touch, deep pressure.
  • Allows movement. Allows movement muscles can flex & body can move.
  • Endocrine. Vitamin D production by your skin.
  • Excretion.
  • Immunity.
  • Regulate Temperature.

Likewise, what are the 3 structures of the integumentary system?

Anatomy of the Integumentary System

  • Epidermis. The epidermis is the most superficial layer of the skin that covers almost the entire body surface.
  • Dermis. The dermis is the deep layer of the skin found under the epidermis.
  • Hypodermis.
  • Hair.
  • Nails.
  • Sudoriferous Glands.
  • Sebaceous Glands.
  • Ceruminous Glands.

What are the main components of the skin system?

Components of the skin include hair, nails, sweat glands, oil glands, blood vessels, lymph vessels, nerves, and muscles. The skin is composed of three layers: Epidermis: The outermost layer of the skin, which is composed of squamous cells.

What is your largest organ?

skin

What is hair made of?

Hair is made of a tough protein called keratin. A hair follicle anchors each hair into the skin. The hair bulb forms the base of the hair follicle. In the hair bulb, living cells divide and grow to build the hair shaft.

How many layers does skin have?

three layers

How do you keep your integumentary system healthy?

To keep it gentle: Limit bath time. Hot water and long showers or baths remove oils from your skin. Avoid strong soaps. Strong soaps and detergents can strip oil from your skin. Shave carefully. To protect and lubricate your skin, apply shaving cream, lotion or gel before shaving. Pat dry. Moisturize dry skin.

How does skin protect against infection?

The skin is your body’s largest organ and its most important barrier against infections. It’s your first line of defense in protecting internal tissues from harmful germs. When there’s a break in your skin, it’s easier for germs to get into your body and cause infection. This makes it easier for germs to get in.

Where is keratin found?

A type of protein found on epithelial cells, which line the inside and outside surfaces of the body. Keratins help form the tissues of the hair, nails, and the outer layer of the skin. They are also found on cells in the lining of organs, glands, and other parts of the body.

What is keratin protein?

Keratin (/╦łk?r?t?n/) is one of a family of fibrous structural proteins known as scleroproteins. It is the key structural material making up hair, nails, feathers, horns, claws, hooves, calluses, and the outer layer of skin among vertebrates. Keratin also protects epithelial cells from damage or stress.

Is skin an organ?

Skin: The Human Body’s Largest Organ. Skin is the body’s largest organ, and along with hair, nails, glands and nerves, is part of the integumentary system, according to Oregon State University. This system acts as a protective barrier between the outside and the inside of the body.

How many systems are there in human body?

There are 11 major organ systems in the human body, which include the circulatory, respiratory, digestive, excretory, nervous and endocrine systems. The immune, integumentary, skeletal, muscle and reproductive systems are also part of the human body.

What does integumentary mean?

The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or damages from outside. The integumentary system includes hair, scales, feathers, hooves, and nails.

How is skin formed?

Skin is made up of three layers. The outermost is the epidermis. This consists mainly of cells called keratinocytes, made from the tough protein keratin (also the material in hair and nails). Keratinocytes form several layers that constantly grow outwards as the exterior cells die and flake off.

What is the function of hair?

Hairs (or pili; pilus in the singular) are characteristic of mammals. The functions of hair include protection, regulation of body temperature, and facilitation of evaporation of perspiration; hairs also act as sense organs. Hairs develop in the fetus as epidermal downgrowths that invade the underlying dermis.

Is hair made of dead skin cells?

It starts at the hair root, a place beneath the skin where cells band together to form keratin (the protein that hair is made of). But once the hair is at the skin’s surface, the cells within the strand of hair aren’t alive anymore. The hair you see on every part of your body contains dead cells.

What is the function of skin?

The skin is an organ of protection The primary function of the skin is to act as a barrier. The skin provides protection from: mechanical impacts and pressure, variations in temperature, micro-organisms, radiation and chemicals.