Integumentary System: Anatomy and Physiology with a related disorder
The integumentary system is an organ that is made of the skin, nails, hair, and the exocrine glands. The skin is the largest organ in the human body. The skin covers the outer body forming a protective barrier from chemicals, disease, UV light, and physical damage. Hair and nails both develop from the skin to protects us from environmental damages. The integumentary has four main types of glands that excrete sweat, oil, wax, and milk. (Skin) The integumentary system can develop disorders or diseases. An example of a disorder would be skin cancer.
The Integumentary system is used for four main functions such as thermoregulation, protection, sensations, and synthesizing
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The Dermis is separated by two main layers called the superficial layer and the deep layer. The superficial layer consists of looser areolar connective tissue and the deep layer consists of dense irregular connective tissue. Dermal cells have four main cells types called fibroblast cells, macrophage cells, adipocyte cells, and mast cells. The most interesting cell to me are the mast cells. Mast cells release two chemicals called Histamine and heparin. Histamine increases blood flow that relaxes smooth muscle. Heparin is a blood thinner that increases capillary diffusion. (Tabor)
The epidermal Layer consists of 5 strata layers called the stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and the stratum corneum. The stratum basale contains two cells called the keratinocytes and melanocytes. Keratinocytes produce keratin and melanocytes produce melanin. Melanin is only found in the epidermis and it protects the body from UV rays. The stratum spinosum has tons of layers of keratinocytes. “The deepest spinosum layer can undergo mitosis, pushing more keratinocytes toward the surface” (Tabor). The stratum granulosum has cells that contain an oily substance. This oil substance waterproofs the skins and prevents the skin from dehydrating. Stratum Lucidum cells have no nuclei or organelles. The stratum corneum
The integumentary system or skin is our body’s largest organ, which weighs 20 pounds or more, accounting for about 16% of total body weight (Thibodeau, 2014, p.93). According to Thibodeau (2014 p. 145) the:
1. The clear, keratinized portion of a fingernail is known as the nail _PLATE_. It has a root, body, and free edge.
The integumentary system is the skin and its derivatives; it provides external protection for the body. Its characteristics are: covers the entire body, accounts for about 7% of total body weight, pliable, yet durable, thickness: 1.5 to 4.0 mm, composed of the epidermis and dermis.
The skin is divided into three different parts including the epidermis, dermis, and hypodermis. The epidermis is the outermost layer of the skin. This region of the skin has no blood cells or blood vessels running through it. All of the nutrients that the epidermis needs are received through diffusion from the dermis. The epidermis is made up of stratified squamous epithelial cells. The epidermis is made of five separate layers: the stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and the stratum corneum. Starting at the innermost layer, the stratum basale is where mitosis of keratinocytes takes place. This layer of the epidermis also contains melanocytes which give the skin it’s pigment. As mitosis takes place in the stratum
The integumentary system also known as skin; surrounds the entire human body therefore being the largest organ. The skin and its annexes like hair, sweat glands, sebaceous glands, nails, etc. The main functions of the integumentary system is to function as a protective barrier, that keeps our body free from intrusion of foreign materials, microorganisms and prevents dehydration as well as protecting from desiccation and there are other functions also helps in elimination of waste products and in the regulation of our body tempeture. There are many other functions of the integumentary system and each organ involved in this system has its own particular use
The three layers that make up healthy skin: Epidermis, Dermis and Hypodermis. Epidermis is composed of keratinized, stratified squamous epithelium. This layer provides a thick, water proof protective covering over the underlying skins. The dermis layer is composed of primarily of dense, irregular, fibrous connective tissue that is rich in collagen and elastin. The dermis contains blood vessels, nerve ending, and epidermally derived cutaneous oranges such as sweat glands, sebaceous glands and hair follicles. The last layer is Hypodermis this layer is composed primarily of loose dead skin. The fat layer provides cushioning and insulation for
Skin is the largest organ on the body. It has two layers: the thin outer layer is made up of dead skin cells that are constantly shed and replaced by new cells. The thick inner layer is made up of blood vessels, nerves, and hair follicles, which contain glands. The glands in the hair follicles produce an oily substance called sebum, which keeps the skin and hair from drying out. Daily washing will keep the skin on the face and other areas of the body clean by removing the dirt, oil, and dead cells before they can accumulate.
There are three primary layers of the skin: the outer layer, the epidermis and the layer beneath, the dermis and the hypodermis. The epidermis is thin, tough and waterproof while protecting the body from outside bacteria invading the body. It also contains keratinocytes which are from the basal layer which is the deepest layer of the skin. The keratinocytes reach up to the epidermis, shed and new ones form again. The dermis is the second layer of the skin and is the thickest. It is made from fibrous and elastic tissues which are made from fibrillin, elastin and collagen to create the strength and flexibility. It also contains sweat and oil glands, nerve endings, blood vessels and hair follicles. Sweat glands help the body cool off during heat
The Integumentary System, also known as the skin, is the largest organ of the body. Its complete structure is composed of many different tissues. The skin protects the cow’s body from any bacterial invasions and physical damage. When a cow becomes sick, the skin is the first system that is affected. The integumentary system is composed of three layers: (i) Epidermis, (ii) Dermis, and (iii) Hypodermis or Subcutis. To start with the inner most layer you have the Hypodermis (Subcutis). The Hypodermis consists of connective tissues, elastic fibers and fat. When fat forms a layer of thickness it is called Peniculus Adiposus. Any reserved energy is also stored within the Hypodermis. Then you have the layer, Dermis. The Dermis supports the outer most layer, Epidermis. Dermis consist of collagen, reticular and elastic fibers which plays a large role in the strength and elasticity in the skin; as well as the maintenance and repair of the skin. Lastly, you have the Epidermis. The Epidermis alone consist of four sublayers, (i) Stratum Corneum – outermost horny layer, (ii) Stratum Lucidum – clear layer, (iii) Stratum Granulosum – granular layer, and (iv) Stratum Spinosum – prickly cell layer. The Epidermis is derived from basal membrane Stratum Basale, which presents the openings for the hair follicles. Some of the functions of the skin include: preservation of the cow’s shape, protection from water loss, protection from any physical, chemical and microbial injury imposed by an external agent. An important role of the skin is it balances its Thermoregulation, which is its ability of an organism to regulate its body
The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands. The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue.
Body Organization and the Integumentary, Skeletal, and Muscular Systems Worksheet Organ Systems Label each of the structures, and describe the systems overall structure. NumberSystemCharacteristics 1Integumentary systemProtects underlying tissues. Provides skin sensation. Helps regulate body temperature. Synthesizes vitamin D.2Skeletal systemAttachment for muscles. Protects organs. Stores calcium and phosphorus. Produces blood cells.3Respiratory systemExchanges respiratory gases with the environment.4Nervous systemRegulates and integrates body functions via neurons.5Endocrine systemRegulates and integrates body functions via hormones.6Cardiovascular systemTransports nutrients, respiratory gases, wastes, and heat. Transports immune cells
Stratum Corneum this layer is the outer most layers; it is formed from numerous layers of compressed scale- like, overlapping cells. What makes up the surface of the skin is corneocytes, which are commonly called ‘dead skin cells’. Keratinocytes are found in the epidermis they travel up through the layer where they are formed into corneocytes. The stratum corneum layer protects against lights, chemicals, water loss, heat and bacteria.
-Most of the functions of the integumentary system primarily involves defending your body and managing certain internal functions.
2. The integumentary system consists of the skin, hair, nails, and sweat glands. Skin is the biggest layer of the body which acts as a barrier to protect body from diseases, retains body fluids, eliminate waste products, and regulate body temperature. Mrs. Loiselle was working in her backyard garden weeding the vegetables. She was sweating continuously. She lost excessive body fluid and her body temperature gets rise. Although, her heart beat get raised. She suddenly felt dizzy which is caused due to less amount of oxygen getting to the brain and also she was hungry from last evening. Her skin gets pale in color because of hunger and less amount of energy present in her body. This was happened because of her busy schedule or work load, it is
Integumentary system comprises of the skin and its appendages which includes hairs, scales, feathers, hooves, and nails.