The two basic tissues of which the skin is composed are dense irregular connective tissue, which makes up the dermis, and 1 , which forms the epi- dermis. The tough water-repellent protein found in the epidermal cells is called 2 .
The second is a melanocyte, a cell that produces the pigment melanin. Melanin gives hair and skin its color, and also helps protect the living cells of the epidermis from ultraviolet (UV) radiation damage.
Secondly, what substance is manufactured in the skin? Sweat, a physiological aid to body temperature regulation, is secreted by eccrine glands. Sebaceous glands secrete the skin lubricant sebum. Sebum is secreted onto the hair shaft and it prevents the hair from splitting. It consists mostly of lipids.
Subsequently, one may also ask, what are two integumentary system mechanisms that help regulate body temperature?
The skin’s immense blood supply helps regulate temperature: dilated vessels allow for heat loss, while constricted vessels retain heat. The skin regulates body temperature with its blood supply. The skin assists in homeostasis. Humidity affects thermoregulation by limiting sweat evaporation and thus heat loss.
What does human skin look like?
The skin has up to seven layers of ectodermal tissue and guards the underlying muscles, bones, ligaments and internal organs. Human skin is similar to most of the other mammals skin, and it is very similar to pig skin. Though nearly all human skin is covered with hair follicles, it can appear hairless.
Is hair an organ?
Hair is an accessory organ of the skin made of columns of tightly packed dead keratinocytes found in most regions of the body. As the follicle produces new hair, the cells in the root push up to the surface until they exit the skin. The hair shaft consists of the part of the hair that is found outside of the skin.
Why is the skin important?
Your skin protects your body from the many viruses and bacteria you are exposed to daily. It also protects you from the sun’s rays – specifically ultraviolet light – that can damage cells. Healthy skin produces vitamin D when exposed to the sun, and vitamin D is important for many body functions.
What are the functions of the skin?
The skin consists of two layers: the epidermis and the dermis. Beneath the dermis lies the hypodermis or subcutaneous fatty tissue. The skin has three main functions: protection, regulation and sensation. Wounding affects all the functions of the skin.
What are the 7 functions of the skin?
Terms in this set (7) Protection. Microorganism, dehydration, ultraviolet light, mechanical damage. Sensation. Sense pain, temperature, touch, deep pressure. Allows movement. Allows movement muscles can flex & body can move. Endocrine. Vitamin D production by your skin. Excretion. Immunity. Regulate Temperature.
Is skin a tissue?
Skin and Connective Tissue. The skin is the largest organ in the body — both in weight and in surface area — and separates the body’s internal environment from the external environment. The skin has many diverse roles. This framework is called the extracellular matrix, or connective tissue.
What is the largest organ in the body?
Is skin an organ?
Skin: The Human Body’s Largest Organ. Skin is the body’s largest organ, and along with hair, nails, glands and nerves, is part of the integumentary system, according to Oregon State University. This system acts as a protective barrier between the outside and the inside of the body.
How does skin protect the body?
The skin protects us from microbes and the elements, helps regulate body temperature, and permits the sensations of touch, heat, and cold. Skin has three layers: The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone.
How does the skin help regulate the body temperature?
Your skin regulates your body temperature through blood vessels and through the process of sweating. The skin is in effect your body’s thermostat. When you’re out in cold weather, your skin triggers shivering so the blood vessels will contract and keep you as warm as possible.
What are the 4 protective functions of the skin?
1 Answer insulates / cushions underlying body tissues. protects entire body from abrasion, exposure to harmful chemicals, temp extremes, bacterial invasion. prevents water loss from body surface. temp regulation.
What is a vascular region?
The vascular system, also called the circulatory system, is made up of the vessels that carry blood and lymph through the body. The lymphatic system helps protect and maintain the fluid environment of the body by filtering and draining lymph away from each region of the body.
Which body areas are most sensitive to touch?
For light touch, the neck, forearm, and vaginal margin are the most sensitive areas, and the areola is the least sensitive. When it comes to pressure, the clitoris and nipple are the most sensitive, and the side boob and abdomen are the least.
What secretes a lubricant for hair and skin?
A sebaceous gland is a microscopic exocrine gland in the skin that opens into a hair follicle to secrete an oily or waxy matter, called sebum, which lubricates the hair and skin of mammals.
What does the presence of cyanosis imply?
What does its presence indicate? Cyanosis is when hemoglobin is poorly oxygenated and the blood and the skin turn blue in Caucasians. It common during heart failure and severe breathing disorders, and appears even in the mucous membranes and the nail beds. Its presence indicates the absence of oxygen!