structure and functions of skin pdf

Structure and functions of skin pdf

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Published: 02.04.2021

LEARNING OBJECTIVE

Functions of the skin

Key Takeaways

Principles of dermatological practice

The dermis consists of a papillary and a reticular layer that serve to protect and cushion the body from stress and strain. Lying underneath the epidermis—the most superficial layer of our skin—is the dermis sometimes called the corium. The dermis is a tough layer of skin. It is the layer of skin you touch when buying any leather goods. The dermis is composed of two layers.

LEARNING OBJECTIVE

Wounding affects all the functions of the skin. 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. The skin regulates several aspects of physiology, including: body temperature via sweat and hair, and changes in peripheral circulation and fluid balance via sweat. It also acts as a reservoir for the synthesis of Vitamin D. The skin contains an extensive network of nerve cells that detect and relay changes in the environment.

If your institution subscribes to this resource, and you don't have a MyAccess Profile, please contact your library's reference desk for information on how to gain access to this resource from off-campus. Please consult the latest official manual style if you have any questions regarding the format accuracy. The skin is the site of many complex and dynamic processes as demonstrated in Figure and Table These processes include barrier and immunologic functions, melanin production, vitamin D synthesis, sensation, temperature regulation, protection from trauma and aesthetics. The epidermal barrier protects the skin from microbes, chemicals, physical trauma, and desiccation due to transepidermal water loss. The keratinocytes of the epidermis are produced and renewed by stem cells in the basal layer resulting in replacement of the epidermis approximately every 28 days.

Functions of the skin

DermNet provides Google Translate, a free machine translation service. Note that this may not provide an exact translation in all languages. The skin of an adult occupies an area of 1. It varies in thickness from 0. The thinnest sites are the eyelids a few cells thick and scrotum.


c: Sweat pores fed by sweat glands open to the cristae cutis (arrows). 1. Structure and Function of the Skin. The skin is the human body's its largest organ, covering​.


Key Takeaways

Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation. Other animal coverings , such as the arthropod exoskeleton , have different developmental origin , structure and chemical composition. The adjective cutaneous means "of the skin" from Latin cutis 'skin'. In mammals , the skin is an organ of the integumentary system made up of multiple layers of ectodermal tissue , and guards the underlying muscles , bones , ligaments and internal organs. Skin of a different nature exists in amphibians , reptiles , and birds.

This diagram shows the layers found in skin. There are three main layers: the epidermis , dermis and hypodermis. There are also sweat glands, and hairs, which have sebaceous glands, and a smooth muscle called the arrector pili muscle, associated with them.

Structure And Function Of The Skin

Keep your skin healthy. The skin has six primary functions that help maintain its homeostasis. The skin consists of layers, each containing important elements that serve to protect the body against harm.

Principles of dermatological practice

The skin is composed of two major layers: a superficial epidermis and a deeper dermis. The epidermis consists of several layers The topmost layer consists of dead cells that shed periodically and is progressively replaced by cells formed from the basal layer. The dermis connects the epidermis to the hypodermis, and provides strength and elasticity due to the presence of collagen and elastin fibers.

Беккера, по-видимому, мучила боль. Он еще не знает, что такое настоящая боль, подумал человек в такси. Девушка вытащила из кармана какой-то маленький предмет и протянула его Беккеру. Тот поднес его к глазам и рассмотрел, затем надел его на палец, достал из кармана пачку купюр и передал девушке.

What kids should know about the layers of skin

2 comments

  • Cecilio R. 03.04.2021 at 18:51

    The AAD's Coronavirus Resource Center will help you find information about how you can continue to care for your skin, hair, and nails.

    Reply
  • Ursula A. 03.04.2021 at 22:04

    This article reviews its structure and functions. The skin is divided into several layers, as shown in Fig 1. The epidermis is composed mainly of keratinocytes.

    Reply

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