Fertebrate Integumentary System

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.

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

Skin and its derivatives make up the integumentary system which acts as a barrier between the body and the outside world. Skin has physical, mechanical, chemical, and immunologic components which allow for body temperature regulation, protection against pathogens, cutaneous sensation, and metabolic functions. When the structural integrity of skin is compromised, its functions are impaired leading to major disability or even death.

Forms the external body covering; protects deeper tissues from injury; synthesizes vitamin D; location of cutaneous receptors (pain, pressure, ect.) and sweat and oil glands.

When people think of the largest organ of the body, they tend to think of the liver. However, the largest organ of the human body is the skin. The skin covers your literally your entire body. There are many aspects of the Integumentary System as well. Not only that, an abundance of skin illness that not only affect the outer layer of the skin, but in all the lower layers as well.

The skin is said to be the largest organ in a human body. It is divided into 3 layers: epidermis (outer layer or superficial layer of the skin), dermis (connective tissue, hair follicles, and sweat glands), hypodermis (subcutaneous fat) (Chen, 2009). These layers act as a barrier by protecting the body from environmental

-Specifically, the integumentary system defends the internal organs/tissues, prevents dehydration, protects against sudden increases/decreases of temperature, and keeps out infectious organisms such as bacteria.

The functions of the human skin are: that it excretes waste, controls temperature, and protects the skin against sunburns by excreting melanin (sciencedirect). Furthermore, the human skin undergoes sweating, sometimes dryness, the skin is exposed to the UV light from the sun, and there might also be exposure to opportunistic pathogens

The organ systems that the frog, fish, pig, and pigeon all have is the integumentary, respiratory, and urogenital systems. According to Reece, “ The integumentary system is a system that includes the skin, hair, nails, sweat glands, and tissue. It is a major organ system that functions as protection for the body shielding it from radiation, infection, physical injury, and chemicals” (879). It also plays a role in homeostasis of body temperatures and insulation with the help of perspiration. The skin has three layers of cells called the epidermis, dermis, and hypodermis. The epidermis forms the body’s outermost protection and contains many layers of keratinocytes. These cells help the body retain the moisture it needs.

The skin, or integumentary system, is the body's largest organ. It protects us from the outside world, and is our first defense against bacteria, viruses and other pathogens. Our skin also helps regulate body temperature and eliminate waste through perspiration. In addition to skin, the integumentary system includes hair and nails

Sweat glands and fatty layers in the process of regulating body temperature in mammals. When the external temperature is high, sweat glands release bodily fluids combined with sodium to keep the body temperature from accelerating and exceeding the normal temperature. When the outside temperature is low, fatty layers on the skin act as insulation, trapping heat and keeping it from leaving the body. The dermis is the layer of skin under the epidermis, and it's made up mostly of soft tissue such as collagen, elastin and fibrillin these are tissues that make your skin elastic and flexible yet strong and structurally stable. The dermis controls body temperature through the production of sweat and the control of evaporation the process known as insensible

Human skin has three layers: epidermis, dermis and hypodermis. Each layer has a unique role in protecting the body and maintaining the functions that are more than skin deep. Of the three layers, only the epidermis is usually seen. This is the outer layer of skin that protects the inner functions of the body from dirt, dust, damage and germs. The next level down, the dermis, is where hair follicles, sweat glands and very tough connective tissue are found. The hypodermis is where

It is composed of highly vascular connective tissue (Stocum, 2006). The dermis contains a rich supply of blood; these blood vessels dilate and contract in response to internal and external stimuli such as anxiety and temperature (Bowers, Thompson, & Miller, 1992). The dermis is therefore responsible for regulating body temperature and blood pressure (Kemble & Lamb, 1984). The blood from the dermis is responsible for the nourishment of newly generated cells in the inner layer of the epidermis (MacDonald, 2009). The function of the dermal connective tissue is to provide structural support for the outer layer of the skin (Martini, Ober, & Bartholomew, 1999). Sensory nerve fibres can also be found in the dermis, which respond to touch, pain and temperature (Bryant & Nix, 2012). This serves an important role in human well-being, allowing us to respond to dangers such as being burnt by a hot object. The organisation of connective tissue permits the dermis to be flexible and contract with the movement of the body (Starcher, 2005). This flexibility provides the body with a barrier to protect it from friction and impact wounds (Hess, 2013). The thickness of the dermis varies across different areas of the

The integumentary system is made of the biggest organ in the body which is the skin.This organ helps to protect the rest of the body from microbes and other harmful elements. It is, literally, a physical barrier to the environment and it absorbs nutrients from the sun and other sources. Also, the skin permits the sensation of touch, heat and cold but most important, it helps to regulate body temperature. This organ makes up to 12% -15% of body weight and its surface is about 1-2 meter. Because the skin it’s in a constant state of change; the cells of the outer layers are continuously shedding and they are replaced by inner cells moving up to the surface, it is said to be a dynamic

The integumentary system is comprised of the skin, hair, nails, and glands associated with the skin. Together, these organs protect underlying tissues from physical and chemical harm, regulate body temperature, and produce vitamin D. The skin, also called the integument is the largest organ of the body. It is the perfect