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Integumentary System (skin)
The Integumentary System includes the skin, hair and nails and is the human body's largest organ system.
2,086 Questions
How do you neutralize acid on the skin?
Massage the affected area with aloe vera gel for 2-3 minutes daily and leave it for 15 minutes, than rinse off. It is a best remedy to remove sun spots.
Three most important functions of the skin?
The skin has 6 basic functions, three of them are Absorption,Protection & Sensation.
Sensation will be your reaction to cold or hot, pain, touch and pressure.
Absorption permits things to pass through such as water or oxygen.
Protection shields your body from the environment and weather conditions, etc.
What prevents water loss in humans?
Excessive body water loss is caused by sickness, sweat, or exhaustion. The body’s energy reserves should be used in increments in order to prevent excessive water loss. If all else fails, drink extra water.
What is the purpose of fat deposits in the skin?
Fats are store in the body for unfavourable conditions as when food supply to body is stop then fat start burning to give energy. Next fat is also helpfull in absorbing physical shocks and temprature changes occur in enviornment.
Is the epidermis composed of stratified squamous epithelium?
Yes. This allows for the skin to withstand friction/abrasion.
Human skin color is primarily due to the presence of melanin in the skin. Skin color ranges from almost black to white with a pinkish tinge due to blood vessels underneath. Variation in natural skin color is mainly due to genetics, although the evolutionary causes are not completely certain. According to scientific studies, natural human skin color diversity is highest in Sub-Saharan African populations, with skin reflectance values ranging from 19 to 46 (med. 31) compared with European and East Asian populations which have skin reflectance values of 62 to 69 and 50 to 59 respectively.
The natural skin color can be darkened as a result of tanning due to exposure to sunlight. The leading explanation is that skin color adapts to sunlight intensities which produce vitamin D deficiency or ultraviolet light damage to folic acid. Other hypotheses include protection from ambient temperature, infections, skin cancer or frostbite, an alteration in food, and sexual selection.
What are the structures of the dermis and their functions?
The dermis contains, among other things, hair follicles, sebaceous glands (oil), sweat glands (cooling), free nerve endings (pain), pressure/touch receptors and a microvascular supply.
What is the right name for skin color?
Actually, there is only one color of skin! All variations in skin "tone" are due to the amount of a chemical called melanin. This chemical forms in the surface of the skin and is thought to be a way for the body to protect itself from too much sun. I have seen people that have obvious traits of a race that are usually dark ,who are totally white skinned, due to albino-ism which is a lack of pigment. Conversely, there are Caucasian people that stay in the sun a lot, who become very dark skinned. If a persons ancestors have lived in the tropics for many generations, they show a natural increase in melanin, that makes their skin darker. But still, the same skin. If those same people move to a region of thick cloud cover for several generations, their skin color will begin to lighten over time.
How long does it take a cell to move from the stratum germinativum to the stratum corneum?
It takes anywhere from 15 to 30 days for cells to migrate from the stratum germinativum to the stratum corneum.
How many types of nerve fibers are in the skin?
Sensory receptors in the skin (cutaneous receptors) are generally of the mechanoreceptor, nociceptor, and thermoreceptor types. Mechanoreceptors sense pressure (such as touch) and vibrations and for example include Meissner corpuscles, Merkel disks, Ruffini corpuscles and Pacinian corpuscles. Nociceptors sense pain caused by damage. Thermoreceptors convey feelings of heat or cold. Chemoreceptors that sense the presence of specific chemicals are sometimes present depending on location but are generally not found on exposed skin.
What is the cause of little or no melanin production in albinism?
Albinism is caused by genetic mutations that affect the production of a pigment called melanin. There is a cell called the melanocyte that is responsible for giving skin, hair, and eyes pigmentation. In albinism, the melanocytes are present, but genetic mutations interfere with their pigment production or their ability to distribute it to keratinocytes (the major cell type comprising the epidermis, or outer layer of the skin).
There are currently five known genetic types of albinism, the most common being oculocutaneous type 1 (OCA1) and type 2 (OCA2). Oculocutaneous means affecting the eyes and skin ("oculo" meaning eye and "cutaneous" meaning skin).
The genetic mutation is usually the result of both parents having the recessive gene. However, some forms of albinism have resulted when only one parent had the recessive gene.
It is the condition that is caused by inability of the body to produce a melanin pigment. Albinism is a recessive trait inherited disease, meaning you have inherited two albinism genes, one from each of your parent.
When, say, first cousins or brothers and sisters marry their children have to many of the same gene, that happening, it ends up in albism. there is no 'cure' for albinism You are born with it and that's that.
I f 2 parents, a mother and a father, each had 1 albinism gene each of their children would have a 1 in 2 chance of carrying the gene themselves and a 1 in 4 chance of being albino that is the cause of albinism
What type of sweat gland is involved in evaporative cooling?
Merocrine Sweat Gland (Merocrine secretion)
- Make up majority of bodies sweat glands
- Most concentrated in palms and soles
- Coiled tubular gland secretes watery fluid
- Sweat composed mainly of hypotonic sodium chloride
- Released directly onto skin surface
- Innervatation
- Cholinergic fibers of sympathetic nervous system
- Stimulation of sweating
- Excessive body heat
- Fear
What does skin protect us from?
Sunscreen helps by blocking out some of the harmful UV rays coming from the sun from getting absorbed into your skin. Depending on the quality (the SPF) and how much you apply / how often you apply it, and how strong the sun is / how much time you spend in the sun, wearing sunscreen can protect you from getting burned, tan, and can help prevent certin forms of skin cancer from developing.
What is the layer of skin that you can see?
Epidermis .. the layer of the epidermis you can see is called the stratum corneum.
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Skin turgor is a qualitative assessment of how well hydrated the skin is. Good skin turgor is an indicator of adequate hydration, while poor skin turgor may indicate dehydration.
Sweat glands are usually either merocrine (most common) or apocrine (a specialized merocrine gland usually found around armpits that may be responsible for body odor and potentially human pheromones).
What is the layer of skin that keeps you warm?
your skin is not what keeps you warm its your body temperature
How do sebaceous glands protect the eye?
You must mean the caruncles, which contain both sebaceous and sweat glands. They produce a whitish, oily secretion that is referred to as "Sandman's Eyesand", the 'sleep' you wipe from your eyes in the morning.
What are the structure and function of the subcutaneous layer?
The human skin is made up of three basic layers ; the epidermis (outer layer), the dermis(middle layer) beneath the epidermis and the subcutaneous layer beneath the dermis. The subcutaneous layers are fat cells and connective tissue that carry the blood vessels and nerves. It is located below the epidermis and the dermis, in that order, and is the third and final layer and consists primarily of loose connective tissue and lobules of fat.
What organ system controls activity of eccrine glands?
The Skin controls the activity of the eccrine sweat glands.
What organs do the integumentary work with?
The brain and heart, directly. Indirectly, the lungs, stomach, kidneys and many others. However, almost all organs in the human body work with the skin in some way (the skin is an organ in and of itself). A better question would be, what organ systems affect the skin?
