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The Integumentary System in Animals

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. It also regulates temperature and the amount of water released into the environment. The thickness of each layer of the skin varies depending on body region and categorized based on the thickness of the epidermal and dermal layers. Hairless skin found in the palms of the hands and soles of the feet is thickest because the epidermis contains an extra layer, the stratum lucidum.

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. For example, see abdominal cavity ; adrenal gland ; aorta ; bone ; brain ; ear ; eye ; heart ; kidney ; large intestine ; lung ; nose ; ovary ; pancreas ; pituitary gland ; small intestine ; spinal cord ; spleen ; stomach ; testis ; thymus ; thyroid gland ; tooth ; uterus ; vertebral column. Humans are, of course, animals—more particularly, members of the order Primates in the subphylum Vertebrata of the phylum Chordata.

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. The deeper layer of skin is well vascularized has numerous blood vessels. It also has numerous sensory, and autonomic and sympathetic nerve fibers ensuring communication to and from the brain. Figure 4. Beneath the dermis lies the hypodermis, which is composed mainly of loose connective and fatty tissues.

The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or damages from outside. The integumentary system includes hair , scales , feathers , hooves , and nails. It has a variety of additional functions; it may serve to waterproof, and protect the deeper tissues, excrete wastes, and regulate body temperature , and is the attachment site for sensory receptors to detect pain, sensation, pressure, and temperature. The skin is the largest organ of the body. In humans, it accounts for about 12 to 15 percent of total body weight and covers 1.


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

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.

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.

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.

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 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.


Integumentary system. – Consists of the skin and accessory organs; hair, nails, and cutaneous glands List the functions of the skin and relate them to its structure. The Epidermis. Figure Dermal blood vessels. Tactile cell. Melanocyte.


Study Guide to the Systems of the Body

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. These actions are made possible by what is called organ systems which are collections of organs, body parts, and tissues that work together for a common goal.

Под потолком завыли сирены. - Информация уходит. - Вторжение по всем секторам. Сьюзан двигалась как во сне. Подойдя к компьютеру Джаббы, она подняла глаза и увидела своего любимого человека.

Он мог отключить ТРАНСТЕКСТ, мог, используя кольцо, спасти драгоценную базу данных. Да, подумал он, время еще. Он огляделся - кругом царил хаос.

Integumentary system

Он даже предупредил АНБ, подбросив ключ, что NDAKOTA - он .

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