### covering:

Skin
* Avoid contact with skin and clothing.
* Can cause moderate injury - reddening and swelling.
* Draws out oils as it balances skin moisture.
* Every skin is different and is exposed to different conditions, such as the environment and climate.
* Many skin diseases mimic drug reactions.
* Most skin absorbs chemicals
  - enough oxygen
  - gases
  - harmful chemicals
  - heat
  - substances
  - toxic chemicals
* Most skin acts as insulation
  - like shells
  - attracts mosquitoes
  - changes color
  - comes from animals
  - consists of layers
* Most skin contains blood vessels
  - few pain receptors
  - fiber
  - keratin
  - melanin
  - nerve fiber
  - nerves
  - pigment melanin
  - protein keratin
* Most skin covers bones
  - organs
  - sensory organs
  - tissue
* Most skin encloses internal organs
  - excretes oil
  - facilitates excretion
* Most skin has allergies
  - different texture
  - excretory functions
  - few wrinkles
  - fluid
  - glands
  - melanin pigment
  - mucuses
  - patches
  - protective pigment
  - respiratory functions
  - shades
  - strength
  - surfaces
  - sweat glands
  - tints
  - top layers
  - velvety texture
  - includes layers
  - mites cause irritation
  - needs protection
* Most skin produces leathers
  - secretion
  - shiny leathers
  - sticky substances
  - toxic secretion
  - waxy secretion
* Most skin protects eyes
* Most skin ranges from color
  - regulates temperature
* Most skin responds to stimuli
  - thermal stimuli
  - retains color
  - serves for respiration
* Most skin surrounds flesh
  - salty flesh
* Most skin touches ice surfaces
  - spines
* Remineralizes the skin.
* Some skin absorbs energy
  - heat energy
  - pesticide
  - radiation
  - ultraviolet radiation
  - acts as protective barriers
* Some skin becomes light
  - ultraviolet light
  - urine
  - carries minerals
* Some skin contains glands
  - mucous glands
  - mucus glands
  - numerous mucous glands
  - oil glands
  - covers cartilages
* Some skin detects movement
  - water movement
  - evolves over time
  - generates heat
* Some skin has centres
  - nipples
  - ridges
  - structures
  - unique structures
* Some skin is caused by infection
  - yeast
* Some skin is protected by bony plates
  - looks like skin
  - needs oxygen
* Some skin produces mucuses
  - poison
  - slimy mucuses
  - protects stomachs
  - releases enzymes
  - removes starches
* Some skin secretes greasy substances
  - natural substances
* Some skin surrounds eyes
  - testes
  - takes in oxygen
* Use adequate personal protection to avoid contact with skin and clothing.
* Wear appropriate protective gloves and clothing to prevent skin exposure.
* Wear gloves and protective clothing to prevent exposure
  - to prevent metal cuts and skin abrasions during handling
  - impervious protective gloves to prevent skin contact
  - many substances and nutrients needed by the body
* accommodates vitamin D synthesis, which is essential for normal bone and tooth structure.
* acts as deterrent
* also acts as a deterrent against toxins, germs and other hazards
  - becomes drier with age
  - contains nerves, sensory receptors, sweat and oil glands and hair follicles
  - functions as a cooling system and helps regulate internal body temperature
* also helps control temperature, through adjustments of blood flow and evaporation of sweat
  - to regulate body temperature through the sweat glands
  - plays an important role in thermoregulation
* are dried after freezing
  - graphics that can change the appearance of a program
  - just as perishable as meat
  - plastic keyboard covers that prevent students learning keyboarding to see the keyboard
  - protected by protective scales
  - textures that wrap onto a model
* becomes dry, subcutaneous fat is lost, and skin elasticity is reduced.
* begins to thicken and is healthy in color.
* boils next to joints.
* burns on the heavily exposed people begin to develop, and later their hair falls out.
* can also freeze to the surface of a metal object.
* can become dry, blotchy or rough when diets deteriorate
  - irritated if it comes into contact with a strong solution of formaldehyde
  - so dry that it has a tendency to crack or fissure
  - breathe and heal itself
  - continue to sweat, releasing sebum and shed dry skin cells
* changes in many ways as a person ages
  - puberty in both boys and girls are due to the actions of androgens
  - the breast
  - secondary to hydroxyurea therapy
* consists of highly directional, often fiber-depleted and sometimes crystalline material
* constantly renews itself by new skin cells pushing upwards, causing older cells to fall off.
  - certain receptors, including pain receptors that register external stimuli
  - intraepithelial lymphocytes whose function is still somewhat unclear
  - mechanoreceptors, thermoreceptors, and nociceptors
  - numerous mucus glands to keep it soft and moist for respiration
  - oil producing glands called the sebaceous glands
  - pigments called melanin
  - special cells, called melanocytes, which deposit dark pigment in the skin
* controls movement
  - ears
* damaged by sunburn, scratching, or other irritation also is more likely to get infected.
* diseases Diseases of the nervous system
  - lower self perception, study finds
  - more common in older people include shingles, leg ulcers, and seborrheic dermatitis
* diseases such as acne worsen
  - fungal impetigo, scabies, etc
  - ringworm, and scabies
* eliminates carbon dioxide
  - water and nitrogenous wastes in sweat
* exudes fluid
  - lubricate fluid
* feels human touch
* flukes, anchor worm and cause goldfish to produce a milky coating on the skin.
* fold determinations also are an accurate way to assess an estimated percentage of body fat
  - pyoderma Wrinkles and folds are ideal spots for bacteria to grow
* folds at the joints as well as the penis and breasts are most commonly afflicted.
* fractal as is the bark on trees or the coastline of a country.
* gills for respiration.
* gives rise to follicles that produce feathers.
* has ability
  - appearances
  - blue tints
  - incredible ability
  - more to do with flesh and wet things falling from trees
  - tendencies
  - the remarkable ability to heal if damaged or to regrow if removed
* helps minimize mechanical injury to the underlying structures
  - protect the organism from the external environment and water loss
* includes cell membranes
  - corneums
  - corpi
  - cuticles
  - cytoplasm
  - dermis
  - epidermises
  - freckles
  - ground substances
  - liver spots
  - mast cells
  - nuclei
  - plasma membranes
  - sections
  - symptoms of nail, scalp and skin conditions
  - vacuoles
* insulates the body against heat and cold and helps regulate body temperature as well.
* irritated by shaving or nail-biting is more prone to developing warts than is unbroken skin.
* is also an insolator
  - essential in thermoregulation and for sensing external stimuli from the environment
  - more susceptible to breakdown if it becomes wet and irritated
  - the best when it comes to keeping our bodies at the right temperature
* is an elastic covering
  - epithelial lining of the exposed parts of the body
  - example of epithelial tissue
* is an external lining
  - manifestation of what is going on internally in our bodies
  - important feature for multicellular life
  - optically complex medium
  - organ, and therefore it thrives on nourishment
  - animation
  - bags
  - bluish, black, or silver, a solid color
  - body parts
  - both tough and elastic
  - capable of itch
  - classified into six groups according to the tendency to sunburn
  - cleansed and the body detoxifies, muscles relax
  - cold to the touch
* is composed of living and dead layers
  - the epidermis and the dermis
  - three layers
  - two layers, the outermost epidermis and the inner dermis
* is comprised of many layers
  - two layers, the epidermis and dermis
  - connective tissue
  - considered one of the most important parts of the body
  - cooked too in the tropics
  - cool due to vasoconstriction
* is covered in scales to reduce moisture loss
  - with scales composed of protein called keratin
  - damaged and ages with over exposure to the sun's rays
  - divided into two parts
  - dry due to lack of essential fatty acids which are designed to keep the skin soft
  - durable stuff that is designed to take abuse and be discarded as it wears out
  - edible to semi-edible with a unique texture
  - films
  - firm to the touch, but the underlying tissues are soft
  - formed from a thick dermal layer covered with non-overlapping epidermal scales
  - hot and dry with no perspiration
  - important in heat exchange and body temperature regulation
  - kept smooth by the presence of fat in the lower layer and water in the middle layer
  - keratinized and dead at apical surface
  - less vulnerable to irritants, allergens, chemicals, and other harmful substances
* is located in bodies
  - fingers
  - fruit
  - good health
  - humans
  - pudding
  - made of high strength plastisol
* is made up of two distinct layers
  - layers, the superficial epidermis and the deeper dermis layer
  - primary layers that differ in function, thickness, and strength
  - matter and is therefore a form of energy
  - more susceptible to decay and destruction
  - only part of our bodies
  - our body's largest organ and entirely chlorine absorbent
* is part of aircrafts
  - pigmented by melanin which acts as a natural sunscreen
  - probably the most commonly injured organ
  - protected from external influences
  - protective, tough, and sensitive all at the same time
  - sensitive to touch
  - separated from the abdominal wall all the way up to the ribs
  - sheepskins
  - smoother and softer, ready to absorb moisture and nutrients
  - super-sensitive to cold
  - the body's first line of defense against sickness, germs, and diseases
* is the body's largest and heaviest organ
  - border, separating the inside from the outside
  - glorious stuff that holds our bodies together and shapes our appearance
  - largest and heaviest organ in the body
* is the largest organ in humans
  - the body serving many functions essential to life
* is the largest organ of the body
  - human body
  - with liver being the second largest
  - only organ that is constantly exposed to potential irritation
  - outer covering of vertebrate animals
  - outermost barrier and is exposed continuously to oxidative stress
* is the primary organ system affected
  - resistor to the flow of current into the body
  - respiratory surface
  - thin and mucus secreted by special cells help to keep it moist
  - tough and generally impermeable to bacteria and viruses
  - tough, pliant, without loose tissue and folds
  - typically highly influential to the properties of a molded part
  - unique in that painful injuries are very well-localized
  - used for burn patients as a temporary dressing
* is used to make shoes, purses, belts and wallets
  - produce eelskin for leather goods
  - treat severe burns
* is usually a defence against toxic substances, but it can also be a point of entry
  - hot and dry and hypersensitive
* is very essential for treating patients with severe burns
  - sensitive to sunburn and bug bites
  - vital to our emotional and physical well-being
* is waterproof and breathable, it regenerates and lasts forever
  - because keratin, a protein is produced
  - waxy and impermeable to water loss
  - white in color
* is, perhaps, the most vulnerable organ in the body.
* lesions Direct contact with infected sheep or goats.
* loses elasticity and becomes thinner with age, resulting in sagging and wrinkling.
* metastases from prostate adenocarcinoma.
* minor route of absorption in man.
* naturally emits scent, so cover as much of it as possible
  - turns darker and sloughs off the bone as the body decomposes
* offers protection.
* passively protects the body from elements of nature and microbes.
* peel off readily after they are roasted.
* performs an active role in immunity through immunological surveillance.
* physical barrier against infection and excessive fluid loss
  - to infection
* plays a vital role in our life, how one looks and feels directly correlates to ones skin.
* prevents dehydration.
* produces black leathers
  - quality leathers
* produces shiny black leathers
* protective organ.
* protects the body against bacterial infection so long as it is intact
  - and maintains body fluids and chemicals
  - from harmful substances and other organisms and from drying out
  - underlie tissue
* provides protection
  - the physical boundary of the human body and defines the visual pattern of a human
* rashes on the face, arms or shins and eye inflammations can also occur.
* refers to the look or overall style of an application such as a web browser
  - presence of skin on skinless market forms
* remarkably durable structure with an incredible ability to regenerate and heal itself.
* represents the body's first line of defense against pathogens
  - natural covering, natural senses and sensitivities, outward man, flesh
* requires care.
* resurfacing with acids and lasers can go too deep and cause inflammation and discoloration.
* revives itself during sleep.
* scarring - Excessive scarring is uncommon.
* secretes fluid.
* semipermeable membrane and is the largest organ of the body.
* serves as a physical barrier to pathogens
* shows initial reaction
* slides across the muscles and fat, and acts like our skin does.
* spots with variations in color or irregular borders can sometimes be skin cancer.
* stays healthy and young-looking because it has the ability to constantly regenerate itself.
* supports the life of all other body parts and plays a role in maintaining the immune system.
* target tissue of neurons that normally expresses neurotrophins during development.
* tends to get dry and wrinkle with age.
* tissue exposed most frequently to oxidative stress from the environment in daily life.
* tissue, so is the lining of the intestine, so is muscle and liver.
* triangulated particle system.
* turns blue as a sign for poor oxygenation of the blood.
* type of tissue called epithelium.
* usually requires more exposure to a substance in order to achieve the same result
  - shows evidence of chronic sun damage
* varies in texture, structure and thickness and is made up of three components.
+ Kavirondo, Culture and society: Geography of Africa
  * A portion of the hut is partitioned off as a sleeping-place for goats, and the fowls sleep indoors in a large basket. Skins form the only bedsteads. In each hut are two fireplaces, about which a rigid etiquette prevails. Strangers or distant relatives are not allowed to pass beyond the first, which is near the door, and is used for cooking. At the second, which is nearly in the middle of the hut, sits the hut owner, his wives, children, brothers and sisters. Around this fireplace the family sleep.