Skin and the integumentary system

The stratum corneum sloughs off as new cells take its place—this shedding process slows down with aging. Healthy functioning of your skin also is related to the digestive system because the digestion and assimilation of dietary fats and oils are essential for the body to be able to make the protective oils for the skin and hair.

Like the skin, the nail is also made up of keratin. No differentiation or apoptosis happens.

Integumentary system

The fungi usually reside on the scales of the skin of the palms and soles and send hyphae that penetrate the hyponychium to invade the nail. The basal cells constantly germinate, or produce new cells. Melanin is a brown or black pigment produced by melanocytes to protect the skin from UV radiation.

Protection The skin provides protection to its underlying tissues from pathogens, mechanical damage, and UV light. Subcutaneous tissue The subcutaneous tissue, also called the hypodermis, is a layer of adipose tissue attached to the deep aspect of the dermis.

This is achieved by the integumentary organs which ensures proper functioning of all the organs of the body. Sebum also lubricates and protects the cuticles of hairs as they pass through the follicles to the exterior of the body.

Sebaceous glands are found in every part of the skin except for the thick skin of the palms of the hands and soles of the feet. They also occur in men but are functionless. It forms the waterproof barrier over the body. Apart from understanding the involvement of the immune system, the exact pathogenesis is unknown yet.

Cerumen protects the ears by trapping foreign material such as dust and airborne pathogens that enter the ear canal. The components of the integumentary system receive their innervation, mostly autonomic, via spinal and cranial nerves. Dead keratinocytes moving into the stratum lucidum and stratum corneum are very flat, hard, and tightly packed so as to form a keratin barrier to protect the underlying tissues.

Fingernails and toenails reinforce and protect the end of the digits and are used for scraping and manipulating small objects. Integumentary System Introduction The integumentary system consists of the skin, hair, nails, glands, and nerves.

Stratum Lucidum The stratum lucidum is the translucent layer, only found on the palms and soles. The integumentary system plays several roles in the body including: Keratinocytes produce keratin, a protective protein that makes up the structure of the skin, nails, and hair.

The protein keratin stiffens epidermal tissue to form fingernails. The deeper layer of the dermis, the reticular layer, is the thicker and tougher part of the dermis.

Integumentary System

Nail matrix The nail matrix is the structure out of which the nail plate grows. These layers serve to give elasticity to the integument, allowing stretching and conferring flexibility, while also resisting distortions, wrinkling, and sagging.

Hypodermis The hypodermis, otherwise known as the subcutaneous layer, is a layer beneath the skin. The nerves of the dermal papillae are used to feel touch, pain, and temperature through the cells of the epidermis.

Integumentary System: TEAS

Defective melanin that causes an abnormal coloration of the skin and hair Herpes: Melanin gives skin its tan or brown coloration and provides the color of brown or black hair. An example is provided by the way that the skin helps in temperature regulation by changes in the pattern of blood supply to the skin and by sweating, as mentioned above.

They also ensure that the internal environment of the body is not affected due to changes in the conditions in the environment outside.

Integumentary System Organs

These integumentary system structures protect the tips of the fingers and the toes. The cells of the stratum basale include cuboidal keratinocytes, melanocytes, and Merkel cells. A contagious skin condition that appears as a rash on the skin Psoriasis:Mar 10,  · In this video Paul Andersen details the important structures and functions of the integumentary system.

The integumentary system includes the skin, hair and. The integumentary system works to waterproof, cushion and protect the body from infection, according to the National Institutes of Health. Most skin is waterproof because of keratin, a fibrous protein, and it also is made up of water, other proteins, lipids and different minerals and chemicals.

Skin, which is the largest organ of the body is the main organ of the integumentary system as well. Other than the skin, the nails, hair, scales, and feathers which are extensions of the skin, are also sometimes studied as integumentary system organs. The integumentary system consists of the hair, skin, nails, and exocrine glands.

Your skin protects you from harmful elements in the environment, and it can be adversely affected by toxins, artificial fragrances, pollution, and other irritants. Feb 09,  · •••SUBBABLE MESSAGE••• TO: Ciaran FROM: your sister Jillian Happy birthday!

Hope you enjoy being immortalized via doobly-doo! *** You can directly support Cr. Integumentary System: The Largest Organ System in the Body The skin makes up approximately 16% of the body’s total weight—it is the largest organ in the body.

Without the skin’s protective barrier from the external environment, the body is vulnerable to infection, injuries, and much more.

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Skin and the integumentary system
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