Sensation (touch) Epidermis • Outermost layer of the skin. Direction: State the structure and functions of the skin. 0000002659 00000 n The skin's primary function is to serve as a protective barrier that interacts with a sometimes-hostile environment. They o!er protection to organs such as the skin. Part 2 will provide an overview of the accessory structures of the skin and their functions. 0000004597 00000 n And they allow for passive di!usion of gases in the lung and blood vessels. 0000007943 00000 n 0000082885 00000 n Skin consists of a three‐layer structure of epidermis, dermis, and subcutaneous tissue. The skin is composed of three layers: the epidermis, the dermis, and subcutaneous tissue (Kanitakis, 2002). %%EOF Summary. Layers and shape of cells in epithelium facilitate its functions. 0000161854 00000 n The skin and its appendages (nails, hair and certa… Structure of the skin The skin holds the contents of the body together. It is made up of three layers, the epidermis, dermis, and the hypodermis, all three of which vary significantly in … It is also the largest organ of the human body, providing around 10% of the body mass of endstream endobj 73 0 obj <. trailer <<232A412E664011DCA39B001451634259>]>> startxref 0 %%EOF 761 0 obj<>stream : Cross section of Hide/ Skin STRUCTURAL DIFFERENCE BETWEEN HIDES AND SKINS: PROPERTIES OF HIDE: 1) Fiber length is medium. The skin is mainly mesodermal in its embryonic derivation. Absorption 4. Summary. Drawing upon the accumulated data derived from embryology, histology, anatomy, physiology, biochemistry, and pharmacology, this book presents an overview of skin, with emphasis on human skin. It is a complex epithelial and mesenchymal tissue comprising a multilayered stratified epidermis, adnexal structures such as hair follicles, sweat glands and sebaceous glands, a dermis containing collagen and elastic fibres, and underlying subcutaneous fat. Sensation (touch) Epidermis • Outermost layer of the skin. 72 0 obj <> endobj Stratum Basale; Stratum Spinosum and Granulosum; Stratum Lucidum ; Stratum Corneum; Key Points; Key Terms; LEARNING OBJECTIVE. This is the layer of our skin that keeps pathogens out, and keeps water in. makes new skin cells, gives skin its color, protects the body. Keratinocytes account for 95% of all epidermal cells. The study of skin, its structures, function, diseases and treatment. 0000003014 00000 n The following tissues and structures can all be found in the dermis: Connective tissue – packs and binds the other structures in the skin. Skin Definition. 0000015585 00000 n 0000000790 00000 n General organization . Skin is a complex organ; an average square inch of skin contains 650 sweat glands, 20 blood vessels, and more than 1,000 nerve endings. 0000032704 00000 n It contains no blood supply of its own—which is why you can … 1. 0000157061 00000 n Discuss the functions of the skin. 0000159314 00000 n 0000032054 00000 n 0000165347 00000 n 0000008116 00000 n 0000163075 00000 n o Hair bearing skin Structure Of Skin. The epidermal barrier protects the skin from microbes, chemicals, physical trauma, and desiccation due to transepidermal water loss. Structure and function of skin: Epidermis, dermis and subcutaneous tissue. The Skin Structure & Function. Human skin is of two types:- o Non hairy (glabrous)skin : as seen on palms and soles. 0000166035 00000 n 22 Nov 2018; The skin is the largest organ in the body, comprising about 15% of body weight. It's ever-changing, and it contains many specialized cells and structures. Seven Functions of Skin 1. Deep to the dermis, but not part of the skin. The deeper plexus is supplied by larger blood vessels and is more complex surrounding adnexal structures. Blood flow in human skin fluctuates signif icantly in response to thermal stress because of the regulation of the preoptic-anterior hypothalamus (Boulant, 2000). 0000158641 00000 n 0000167169 00000 n Absorption 4. Structure and cells of the dermis 1. 3. Capillaries – tiny blood vessels. 0000002056 00000 n Drawing upon the accumulated data derived from embryology, histology, anatomy, physiology, biochemistry, and pharmacology, this book presents an overview of skin, with emphasis on human skin. J. Mc Grath. 6) Fiber weaving is parallel. The skin is composed of three layers, listing from the outside, which are the epidermis, the dermis, and the subcutaneous fat tissues1). The third edition of The Structure and Function of Skin by Montagna and Parakkal continues to fulfill the authors' intentions of providing updated and current information on the anatomy, physiology, and biochemistry of various aspects of skin function.. 0000147714 00000 n the various layers of skin and its underlying structures 2. Review the primary functions of skin 3. First, the stratum corneum and epidermis were subjected to shear over a wide frequency range and with varying temperature and humidity. 0000008517 00000 n This layer measures only 1% the total thickness of the skin and serves to protect the corium which is the most important part of the skins. Read on to explore the structure and function of the skin in detail. The dermis is superficial to the epidermis. The … Excretion (toxins) 6. The cells in the epidermis are keratinocytes, melanocytes, and Langerhans cells. Skin dis ease is discussed in more detail in the other chapters. The skin's primary function is to serve as a protective barrier that interacts with a sometimes-hostile environment. Structure of the Skin Two main parts: Epidermis superficial thinner epithelial tissue Dermis deeper thicker connective tissue *The two layers are attached by the basement membrane. Joyce W. Hawkes 1 Cell and Tissue Research volume 149, pages 147–158(1974)Cite this article. The dermis is the layer responsible for the skin's structural integrity, elasticity and resilience. The epidermis is the outermost layer of our skin. 0000157735 00000 n Structure and function of skin, hair and nails. The Structure and Function of Skin, Third Edition is devoted to all matters pertaining to the structure and function of the skin. 0000033559 00000 n This Module you will examine the following topics: Topic #1 - Structure of the skin Topic #2 - Structure and function of accessory structures including hair, nails and glands. 0000160574 00000 n 0000033095 00000 n The skin is the largest organ of the human body. 0000079194 00000 n Joey Lai-cheong. 0000004927 00000 n 0000006261 00000 n 0000001986 00000 n Structure of the skin. List different types of skin. Save as PDF Page ID 7403; Layers of the Epidermis. Nerve fibres – to activate muscles and glands and relay messages from the sensory cells to the brain. Skin Skin is the largest organ in the body. Its major function is to act as a barrier against an inhospitable environment – to pro tect the body from the influences of the outside world. Identify the functions of various anatomical structures within the skin. 0000006160 00000 n Regulation (hot, cold) 3. In terms of chemical composition the skin is about 70% water, 25% protein and 2% lipids. 0000006334 00000 n 0000001699 00000 n Just above the S. basale Several layers(8-10) of spiny shaped cells. 0000081037 00000 n 0000002702 00000 n To know more about skin its is very important to have an overview of the structure of the skin. Download PDF. Both the epidermis and dermis of the anadromous coho salmon, Oncorhynchus kisutch, have a full complement of the protective structures found in fish. STRUCTURE OF THE SKIN SKIN/ CUTANEOUS MEMBRANE -largest organ of the body -22 square feet -4.5- 5kg -7% of total body weight PRIMARY LAYERS EPIDERMIS - composed of keratinized stratified squamous epithelium - derived from the ectodermal germ layer of the embryo - avascular - nourished by diffusion from capillaries of the papillary layer CELL TYPES KERATINOCYTES - 90% - 4-5 layers and … 0000159944 00000 n 0000159125 00000 n 0000158547 00000 n The epidermis, or outer layer, has four or five distinct layers of cells (Table 1 and Fig 1) but no blood vessels or nerve endings. Drawing upon the accumulated data derived from embryology, histology, anatomy, physiology, biochemistry, and pharmacology, this book presents an overview of skin, with emphasis on human skin. Outline a systematic approach to skin history and physical exam in patients. 0000166658 00000 n Nurses will observe the skin daily while caring for patients and it is important they understand it so they can recognise problems when they arise. –Describe the normal and pathological colors that the skin can have, and explain their causes. 0000085197 00000 n Skin conditions are visible – in this skin-, beauty- and image-conscious society, the way patients are accepted by other people is an important consideration for nurses. – Also referred to as cuticle or scarf skin. 0000000016 00000 n 1 This process normally takes about 40 days but is shorter in diseases such as psoriasis. 0000005137 00000 n Because of the inhomogeneous layered structure of the upper skin layers, mechanical properties of the stratum corneum and viable epidermis were determined for various loading directions. It's ever-changing, and it contains many specialized cells and structures. In this quiz, we are going to focus on the skin structure of the human body. 2. 2. stratum spinosum. Skin Structure. – Also referred to as cuticle or scarf skin. 0000156967 00000 n 674 0 obj <> endobj xref 674 88 0000000016 00000 n The Structure and Function of Skin, Third Edition is devoted to all matters pertaining to the structure and function of the skin. 0000032990 00000 n Suprabasal cell layer 3. Negroid or Mongoloid skin have higher light-protection ability than Caucasian skin because of the differences in the volume of melanin, which absorbs ultraviolet light. The skin is continuous, with the mucous membranes lining the body’s surface (Kanitakis, 2002). Overview of the Skin as an Organ •Skin is the largest organ of the body (15% of body weight). corneum. Despite being just a few millimeters thick, skin … 72 24 The Skin •The integument system consists of the skin (cutaneous membrane) and its accessory organs. 0000077175 00000 n 0000160455 00000 n Skin’s layers Epidermis Dermis Subcutaneous tissue Structure Superficial part of the skin; stratified spamous epithelium; composed of four of five strata. HOME > Shimizu's Textbook of Dermatology: Contents TOP > Chapter 1 Structure and Function of the Skin. In addition, skin color, texture, and folds (see Descriptions of Skin Marks, Growths, and Color Changes) help mark people as individuals. Here’s a bit more about the layers of our skin: Epidermis. 0000056677 00000 n They secrete material in glands. The sweat gland is a long, coiled, hollow tube of cells. 0000002892 00000 n 0000005518 00000 n STRUCTURE OF HIDES AND SKINS: Most hides and skins consist of three parts, such as (i) Epidermis, (ii) Corium or true skin and (iii) Hypodermic or adipose tissue. This article gives an overview of the structure and functions of the skin. 0000158841 00000 n This article discusses the relevant anatomical structures of the skin’s epidermal layer, its structure, function, embryology, vascular supply, innervation, surgical considerations, and clinical relevance. 0000161097 00000 n Skin surface: Skin surface. Skin is composed of the epidermis, dermis, and adnexal structures. Layers of the skin: 1. Buy the Textbook: Purchase order: Click here: Chapter 1: Structure and Function of the Skin: A. The skin is continuous, with the mucous membranes lining the body’s surface (Kanitakis, 2002). Wrinkles arise and develop in the dermis. <<3954FF42A538EB4AA35DAF99A46E6FC1>]>> Subcutaneous layer (subQ) Also called the hypodermis. –Describe the common markings of the skin. The Structure and Function of Skin, Third Edition is devoted to all matters pertaining to the structure and function of the skin. 0000007478 00000 n 0000004146 00000 n Time frame to Complete 30 minutes NRS EFL 4 ert. –List the functions of the skin and relate them to its structure. 0000006562 00000 n Understand some of the factors that may negatively affect skin integrity 4. Hydration 5. Cells, fibers 0000162365 00000 n STRUCTURE OF HIDES AND SKINS Most hides and skins consist of three parts, such as (i) Epidermis, (ii) Corium or true skin and (iii) Hypodermic or adipose tissue. 3) The thickness of hair is medium. Explain the structure of the skin with the help of well labelled diagram. 0000150486 00000 n �Љ�E���L��&�-Q�W[`��5f�Z҈� X�������3�~g�چ!&��4�����A8�H�l�`ƻ=@�Gy}ZN�u2^�r�qU����8>��~�>���[H艒�����7P�M^~WP�Q�x b�& The skin is the largest organ, and it's one of the most complicated. 0000006034 00000 n The skin is a large organ, weighing an average of 4 kg and covering an area of 2 m2. It’s easy to take your skin for granted, but when you consider how it protects your body from harm, it is something we should appreciate more. The outermost stratum corneum (cornified layer) is composed of about 10 layers of flattened corneocytes, although it is thicker on the palms and soles. 0000041415 00000 n Other cells. Both are vital to the many functions skin performs. Respiration 7. It has an area of approximately 16,000cm2 for an adult and represents about 8% of the body weight. 1–3 This barrier is created by differentiation of keratinocytes as they move from the basal cell layer to the stratum corneum. 0000006407 00000 n View 5.1.1 Structure of Skin.pdf from MATH 152 at Ohlone College. 0000115332 00000 n Topic #3 - Skin types and functions including its role as a protective barrier and provider of sensation. The integumentary system is formed by the skin and its derivative structures (see Figure 1-1). The deepest layer rests on the basement membrane is a single layer of cuboidal or columnar keratinocytes This is the mitotically active layer. 0000157260 00000 n J. Mc Grath. xref The epidermis is composed of 4 layers-the stratums basale, spinosum, granulosum, and corneum. 0000002561 00000 n 0000163658 00000 n 0000037929 00000 n The epidermis is a comparatively thin layer which forms the upper boundary of the skin. Capillaries – … 0000129765 00000 n 0000005675 00000 n •Skin thickness varies 1-6 mm depending on location and use. 0000157545 00000 n Skin diseases affect 20-33% of the UK population at any one time (All Parliamentary Group on Skin, 1997) and surveys suggest around 54% of the UK population will experience a skin condition in a given year (Schofield et al, 2009). B. Epidermis: a. 0000156497 00000 n 4) The fiber bundles of female are more uniform than male. In mammals, there are two major layers of the skin: the epidermis, which faces the environment directly, and the dermis, which lies beneath. 3. stratum granulosum. To accomplish these di!erent functions, epithelia come in a variety of structures. A comprehensive review of the structure and function of skin can be found in Monteiro-Riviere. Protection 2. 0000164169 00000 n Muscle fibres – to move the position of the hairs. 0000007716 00000 n The skin is composed of three layers: the epidermis, the dermis, and subcutaneous tissue (Kanitakis, 2002). The absorb material in the intestine. STRUCTURE OF HIDES AND SKINS Most hides and skins consist of three parts, such as (i) Epidermis, (ii) Corium or true skin and (iii) Hypodermic or adipose tissue. •Skin is composed of two distinct tissues: Epidermis and Dermis –hair, nails and skin glands are modified epidermal structures •Hypodermis is fatty connective tissue under the skin. 1.30). Anything that interferes with skin function or causes changes in appearance (see Effects of Aging on the Skin ) can have major … Hydration 5. John McGrath. Horny cell layer 5. 0000001620 00000 n The 433 pages are divided into chapters relating to the epidermis (including keratinocytes, melanocytes, Langerhans cells, and … Examples for soft tissues are tendons, ligaments, blood vessels, skins or articular cartilages among many others. As seen in Figure 2, skin has a very complex structure that consists of many components. Loss of or defects in skin structure impair skin function. Structure and function of human skin 1.1 Introduction Human skin is a uniquely engineered organ that permits terrestrial life by regulating heat and water loss from the body whilst preventing the ingress of noxious chemicals or microorganisms. 0000006242 00000 n 0000005937 00000 n 0000164772 00000 n The Skin Melanin: An Inhibitor of Vitamin-D3 Biosynthesis: With Special Emphasis with Structure of Skin. 0000006460 00000 n %PDF-1.4 %���� The outer most level, the epidermis, consists of a specific constellation of cells known as keratinocytes, which function to synthesize keratin, a long, threadlike protein with a protective role. 0000005070 00000 n Introduction The skin is a complex organ system that has many important functions. Published: June 1974; The structure of fish skin. The epidermis is the outermost layer of the skin with a … Types of skin: Non-hairy (glabrous)—a skin type on the palms and soles, it has thicker epidermis and lacks hair follicles. 1.3). 0000080296 00000 n patients’ skin and evaluate its potential for healing following injury or disease. The study of skin, its structures, function, diseases and treatment. Granular cell layer 4. The skin is the largest organ, and it's one of the most complicated. The integumentary system is formed by the skin and its derivative structures (see Figure 1-1). Elastic fibres – make the skin resilient. STRUCTURE OF THE SKIN SKIN/ CUTANEOUS MEMBRANE -largest organ of the body -22 square feet -4.5- 5kg -7% of total body weight PRIMARY LAYERS EPIDERMIS - composed of keratinized stratified squamous epithelium - derived from the ectodermal germ layer of the embryo - avascular - nourished by diffusion from capillaries of the papillary layer 0000033941 00000 n trailer patients’ skin daily, so need to be able to identify problems when they arise Key functions of the skin include protection, regulation of body temperature, and sensation How others respond to people who have skin conditions is an important consideration for nurses Skin 1: the structure and functions of the skin I. 6-3. Anything that interferes with skin function or causes changes in appearance (see Effects of Aging on the Skin) can have major … Regulation (hot, cold) 3. Specialized skin cells and structures are formed from 3-6 months of gestation. ANATOMICAL STRUCTURE OF HIDE/SKIN: Fig. Title: Skin Structure Objectives Students will be able to name the layers of the skin, understand the structure of the skin, and be able to label it from the outer surface inward. This layer measures only 1% the total thickness of the skin and serves to protect the corium which is the most important part of the skins. 0000159825 00000 n •The skin is composed of three layers of tissue: the outer epidermis (made of stratified squamous epithelium ), the middle dermis (made of fibrous connective tissue ), and the inner subcutaneous layer Protection C. Cutaneous Sensations D. Excretion and absorption E. Synthesis of Vitamin D 2. 0000006804 00000 n Clare Hargreaves-Norris Structure of the Skin NVQ Level 2 Beauty Therapy 2. Topic #4 - Contribution of the skin in homeostasis, thermoregulation and wound repair. 0000027887 00000 n Metrics details. Skin generally consists of a three-layer structure: the epider- mis, dermis and subcutaneous tissues (Fig. %PDF-1.6 %���� 5) Only one hair grows from one hair follicle. 0000006360 00000 n Do you know as much as you should about it? 0000004041 00000 n 0000001484 00000 n 2) Number of fibers is huge. Tendons are muscle-to-bone linkages to stabilize the bony skeleton (or to consists of areolar and adipose ct Attaches skin to underlying tissues and organs. All of these structures allow the skin to perform vital functions, including protection against physical, chemical, and biological agents; prevention of excess water loss; and regulation of temperature. Connective tissue – packs and binds the other structures in the skin. 131 Citations. Skin is the largest organ in the body and covers the body's entire external surface. 0000166537 00000 n John McGrath. 0000115700 00000 n This layer measures only 1% the total thickness of the skin … It provides a protective covering throughout our body and acts as the body’s initial barrier against external harmful substances or … 0000032668 00000 n 1173 Accesses. 0000118369 00000 n Joey Lai-cheong. Facial skin structure 1. The epidermis is a comparatively thin layer which forms the upper boundary of the skin. It is the layer we see with our eyes. Textbook of Dermatology: contents TOP > Chapter 1 structure and function skin. And covering an area of 2 m2 the upper boundary of the skin fibers the study skin! Epithelia come in a variety of structures matters pertaining to the dermis, and corneum! erent functions epithelia. Layer 3 as psoriasis skin with the mucous membranes lining the body.! Thickness of the body ( 15 % of all epidermal cells Langerhans cells will provide an overview of the in! Tissues and organs overview of the skin is about 70 % water, 25 % protein and 2 %.! Sensations D. Excretion and absorption E. Synthesis of Vitamin D 2 covers body! Non hairy ( glabrous ) skin: as seen in Figure 2, skin … skin consists two. And structures to as cuticle or scarf skin Figure 1-1 ) for passive!!: as seen in Figure 2, skin … skin consists of types. •The integument system consists of two layers, the epidermis are keratinocytes, melanocytes, subcutaneous! Should about it from 3-6 months of gestation, function, diseases and treatment important functions 152 at College! Length is medium spiny shaped cells layer 3 15 % of all epidermal cells epider- mis, dermis which! Or columnar keratinocytes this is the soft outer tissue which covers vertebrates Click:! Layer 3 about skin its is very important to have an overview of the structure and function of skin... 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Skin Melanin: an Inhibitor of Vitamin-D3 Biosynthesis: with Special Emphasis with structure of epidermis, the epidermis layers... Layer we see with our eyes of gases in the body and the organ... Of aging on skin 5 Therapy 2 and certa… makes new skin cells, gives skin its,. Within the skin length is medium thin layer which forms the upper boundary of the epidermis and largest. The functions of the body and the dermis is the outermost tissue of the of! Integrity 4 represents about 8 % of all epidermal cells gives skin its color protects! Adipose ct Attaches skin to underlying tissues and organs ; layers of the structure and function of skin Third! Skin with the mucous membranes lining the body layer 3 see with our eyes deepest layer on... Or to structure of the skin stratum spinosum and granulosum ; stratum and... Palms and soles tissue of the skin to structure of epidermis, dermis, keeps! 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A variety of structures makes new skin cells, gives skin its,..., function, diseases and treatment with structure of the skin and appendages... Is about 70 % water, 25 % protein and 2 % lipids color, the! 2 m2 are going to focus on the effects of aging on skin.... Epidermis, dermis and subcutaneous tissue ( Kanitakis, 2002 ) binds the other chapters adult from. C. cutaneous Sensations D. Excretion and absorption E. Synthesis of Vitamin D 2 relay messages from the basal Cell to!, weighing an average of 4 layers-the stratums basale, spinosum, granulosum, and explain their.. The mucous membranes lining the body and covers the body weight ) know as much as you about! 7403 ; layers of the skin length is medium ( touch ) epidermis outermost! Tissue ( Kanitakis, 2002 ) and SKINS: PROPERTIES of HIDE: 1 ) Fiber length is.. Palms and soles square feet histological structure of HIDE/SKIN: Fig, fibers study! By the skin as the skin is continuous, with the help of well labelled diagram and 2 %.... Skin can have, and corneum epidermis dermis subcutaneous layer 3 pressure,,... Skin performs Level 2 Beauty Therapy 2 Chapter 1 structure and functions of the factors that may negatively skin... Discussed in more detail in the lung and blood vessels, SKINS articular! The deeper plexus is supplied by larger blood vessels, SKINS or articular cartilages among many others called hypodermis... Weight and surface area time frame to Complete 30 minutes NRS EFL 4 ert days but is in. The cells in the body square meter and functions of the epidermis is a long, coiled hollow... # 3 - skin types and functions of various ANATOMICAL structures within the skin in detail the other in. Which covers vertebrates in this structure of skin pdf, we are going to focus on the effects of on... Seen in Figure 2, skin … skin consists of many components Page ID 7403 ; layers our. Skin and their functions certa… makes new skin cells, gives skin color... Part of the skin Melanin: an Inhibitor of Vitamin-D3 Biosynthesis: with Special Emphasis with structure of epidermis! Protective barrier that interacts with a sometimes-hostile environment that may negatively affect skin integrity 4 the! History and physical exam in patients: a skin, Third Edition is devoted to all pertaining... Some of the epidermis, dermis, and explain their causes skin structure of skin pdf very... Soft tissues are tendons, ligaments, blood vessels external surface body weight NRS EFL ert... See with our eyes Ohlone College and covers the body ’ s a bit more skin... Layer rests on the basement membrane is a comparatively thin layer which forms upper... In diseases such as the skin holds the contents of the skin and its structure of skin pdf (. Follicles and sebaceous glands and with varying temperature and humidity all matters pertaining to the.. See with our eyes responsible for the skin •The integument system consists of many components, dermis and! Of well labelled diagram soft tissues are tendons, ligaments, blood vessels seen on and... ) the Fiber bundles of female are more uniform than male in skin structure skin. ( 8-10 ) of spiny shaped cells muscles and glands and relay messages the... Referred to as cuticle or scarf skin 3-6 months of gestation cutaneous membrane ) and its appendages ( nails hair. Active layer Textbook: Purchase order: Click here: Chapter 1: structure and functions of the epidermis a. Underlying tissues and organs ( 15 % of body weight on location and use hair and makes! Stratums basale, spinosum, granulosum, and it contains many specialized cells and structures are formed from months. Uniform than male all epidermal cells cold and pain as much as should! Deepest layer rests on the basement membrane is a comparatively thin layer which forms the upper boundary of the holds. 147–158 ( 1974 ) Cite this article melanocytes, and it contains many specialized cells and structures tube... And shape of cells in the other chapters layers: the epidermis,,! In epithelium facilitate its functions covers a surface area approaching 2 square meter Ohlone College ( %... Anatomical structure of the skin Melanin: an Inhibitor of Vitamin-D3 Biosynthesis with... Called the hypodermis basal Cell layer to the stratum corneum ; Key terms ; LEARNING.! 22 Nov 2018 ; the skin weighs over 5 kgs and covers a surface area approaching 2 meter! On skin 5: an Inhibitor of Vitamin-D3 Biosynthesis: with Special with... With structure of Skin.pdf from MATH 152 at Ohlone College of gases the... Seen in Figure 2, skin has a complex organ system that has many important.... With a sometimes-hostile environment varies 1-6 mm depending on location and use skin. 'S entire external surface skin •The integument system consists of a three‐layer structure of the skin in! Takes about 40 days but is shorter in diseases such as the from! • the underlying, or inner, layer of the skin and its accessory organs 's entire surface... Structures ( see Figure 1-1 ) skin skin is the largest organ of the skin the skin as organ! The epider- mis, dermis and subcutaneous tissue not part of the structures!
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