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51 Cards in this Set
- Front
- Back
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Solute
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dissolved substance that cab be solids, liquids or gas
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Suspension
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temporary mixtures of insoluble powders in liquids where the powder will seperate from the liquids upon standing
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Solvent
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agent capable of dissolving substances
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Solution
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Permanet mixture made up of a solvent and solute which doesn't sepereate upon standing
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Tapotment
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Percussion
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Efflerage
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Stroking
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Vibration
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Shaking
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Fricktion
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Rubbing
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Petrissage
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Kneading
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Sebum
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Provides protections from external factors for the epidermis and lubricates both the skin and hair
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Rosacea
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-Capillaries chronically dilated
-skin inflam., papules, pustules -more women than men -medical condition -30-60 yr olds -tzone -cause unclear/digestive disorder |
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Telangeictasis
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-caused by dilated capillaries
-appear as fine spidery veins, visible on skins surface -usually on nose and cheeks due to aging and sun exposure -genetic weakness and nutrition defieciency -the wall of vessels loses elasticity |
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Hyperemia
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-Chronic state of capillary dilation
-mild or severe reddening of the skin -may develop telaniectasis later in life -resulting from increased amounts of blood in the capillary vessels leading to weakening the capillary walls |
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Homeostasis
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The process of keeping the internal environment of the body stable by making adjustments to changes in the external environment.
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Function of the nervous system
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to recieve stimuli and transmit messages within the body so adjustments can be made that are necessary for survival.
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Nucleus
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dense and active protoplasm found in the center of the cell. (where reproduction and metabolism happens)
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Cytoplasm
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All the protoplasm of a cell except in the nucleus, where watery fluid that contains food material for growth, reproduction and self repair of the cell are.
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Cell Membrane
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Encloses the protoplasm and lets soluble substances to enter and leave the cell.
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Epithelial
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covers surfaces, lines cavaties and forms tubes
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Connective
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forms protective, supporting and binding structures (collagen and fat)
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Muscle
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has contractile ability to produce movement
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Nerve
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includes the sensory, coordinating, and conducting structures (transmitting messages)
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Liquid
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serves as a carrier of food, waste products and horomones by means of lymph and blood
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masseter
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for opening and closing the mouth (chewing)
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bussincator
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muscle of the cheek between the upper and lower jaw that compress the cheeks and air between lips
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sterno-cliedo mastoid
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muscle of the next that lowers and rotates the head
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frontalis
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front poraises the eyebrows and draws scalp forward casing wrinkles across forehead
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orbicularis oris
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band around moth that compresses, contracts and puckers the lips
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zygomaticus
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major and minor muscles extending from the zygomatic bone to the angle of the mouth that elevates the lip (laughing)
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corrugator
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muscle beneath the frontalis and orbicularis oculi, that draws eyebrow down and wrinkles the foredead vertically
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afferent
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(sensory) transmits nerve impulses toward the CNS
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efferant
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(motor) transmit nerve impulses away from the CNS
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5th crainal nerve
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cheief snsory motor of mastification
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7th cranial nerve
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chief motor, controls facial expressions
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Epidermis
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-covers
-6 layers -straified epithilim -mostly dead skni cells -consists of the horny later which estheticians mostly work on -A vascular -constant state of renewal -where keratinization happens -arteries and veins |
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Dermis
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-connects
-vascular -"true skin" -papillary is 1/5 -reticular layer is 4/5 -blood, lymph, sud. and seb. glands, collagen and elastin |
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Hypodermis
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-cushion
-pressure receptors -adipose tissue |
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Keratinization
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-changes every 4-6 weeks and 28 days
-starts in germinitive layer and ends in horny -cells are born, dehydrate, die and then turn into keratin before sloughing off -new cells are always plushing up -never ending process -controlled by the endocrine system -affected by age and climate |
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how to the pilo sebaceous follicles function?
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combines with perspiraction tyo create hydro lipid film to protect skin and prevent moisture loss
-1 to 2 grams in 24hr period |
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Aprocine (suderiferous gland)
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-alkaline in nature
-found mainly in groin and axilla -responisble for odor -opens next to pilo sebaceous unit |
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Eccrine (suderiferous gland)
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-acidic in nature
-found everywhere on body -opens on skins surface |
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Define pH
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Potential Hydrogen
-acidicty or alkalinity of a substance |
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Acid Mantle
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-Skin produces sebum and sweat that creates a barrier on the surface against certain forms of bacteria
-pH is 4.5-6.2 |
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Buffer Capacity
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ability to return to the normal value of approximately pH 5 after such changes
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Three types of fatty compnents in the skin
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1. sebum
2. hydro-phobic: keratinization 3. hydro-phillic: persp. and sebum on hydro lipid film |
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Inibition of the horny layer
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swelling of the horny layer cells from certain cosmetic products containing mostly fluids when h20 and hydrophilious lipids are combined (rose flower)
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Horny assimilation
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Products containing lipids and protein constituently surround and penetrate the cells of the superficial strata
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Transuctaneous Absorption
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Penetration of a substance through the different strata of the skin ultimately into the blood and lymph system
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Alcohol
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-70-90%, 10 minutes
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Formaldehyde
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active gas found in formalin
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quatz
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1:1000
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