File Name: integumentary system parts and functions picture .zip
Ahmed Raza. Have you ever wondered how your food is digested, or how you can breathe, or even move your arms? If you think about it, it's pretty amazing that the human body can do all of these things and more.
The skin has many functions, including serving as an enclosing barrier and providing environmental protection, regulating temperature, producing pigment and vitamin D, and sensory perception. Anatomically, the skin consists of the following structures: epidermis, basement membrane zone, dermis, appendageal system, and subcutaneous muscles and fat. The epidermis is composed of multiple layers of cells consisting of keratinocytes, melanocytes, Langerhans cells, and Merkel cells. Keratinocytes function to produce a protective barrier. They are produced from columnar basal cells attached to a basement membrane. The rate of cell mitosis and subsequent keratinization are controlled by a variety of factors, including nutrition, hormones, tissue factors, immune cells in the skin, and genetics.
Nurses need to understand the skin and its functions to identify and manage skin problems. This article comes with a self-assessment enabling you to test your knowledge after reading it. Nurses observe the skin of their patients daily and it is important they understand the skin so they can recognise problems when they arise. This article, the first in a two-part series on the skin, looks at its structure and function. Citation: Lawton S Skin 1: the structure and functions of the skin.
Human body , the physical substance of the human organism, composed of living cells and extracellular materials and organized into tissues , organs , and systems. Human anatomy and physiology are treated in many different articles. For detailed discussions of specific tissues, organs, and systems, see human blood ; cardiovascular system ; digestive system, human ; endocrine system, human ; renal system ; skin ; human muscle system ; nervous system ; reproductive system, human ; respiration, human ; sensory reception, human ; skeletal system, human. For a description of how the body develops, from conception through old age , see aging ; growth ; prenatal development ; human development. For information on the structure and function of the cells that constitute the body, see cell.
The integumentary system is an organ system consisting of the skin, hair, nails, and exocrine glands. The skin is only a few millimeters thick yet is by far the largest organ in the body. The epidermis is the most superficial layer of the skin that covers almost the entire body surface. The epidermis rests upon and protects the deeper and thicker dermis layer of the skin. Structurally, the epidermis is only about a tenth of a millimeter thick but is made of 40 to 50 rows of stacked squamous epithelial cells.
What do you think when you look at your skin in the mirror? Do you think about covering it with makeup, adding a tattoo, or maybe a body piercing? The integumentary system refers to the skin and its accessory structures, and it is responsible for much more than simply lending to your outward appearance. In the adult human body, the skin makes up about 16 percent of body weight and covers an area of 1. In fact, the skin and accessory structures are the largest organ system in the human body.
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. The skin interfaces with the environment and is the first line of defense from external factors.
The integument system consists of the skin (cutaneous Accessory organs include the hair (hair root and hair Functions of the Integumentary system.
4: The Integumentary System
Although you may not typically think of the skin as an organ, it is in fact made of tissues that work together as a single structure to perform unique and critical functions. The skin and its accessory structures make up the integumentary system , which provides the body with overall protection. The skin is made of multiple layers of cells and tissues, which are held to underlying structures by connective tissue Figure 4.
NCBI Bookshelf. It is made up of three layers, the epidermis, dermis, and the hypodermis, all three of which vary significantly in their anatomy and function.
Канадец. - Да. Он вызвал скорую. Мы решили уйти.
Время для него остановилось. Он услышал, как стучит его сердце. Человек, в течение многих лет одерживавший победу над опаснейшими противниками, в одно мгновение потерпел поражение.