Is the study of structure and composition of the skin.
Is the study of the functions of living organisms.
Is the largest organ in the body. Protects us from outside elements and from the sun.
Palms of hands and soles of feet
Where skin is thickest.
Where skin is thinnest.
blood vessels (within 1'' of skin).
Nerves (within 1'' of skin).
Sweat glands (within 1'' of skin).
Oil glands (within 1'' of skin).
hairs (within 1'' of skin).
Nerve endings (within 1'' of skin).
Pressure receptors (within 1'' of skin).
Cold and heat receptors (within 1'' of skin).
Protection (Skin Primary function)
Name the primary skin function that is a protective barrier and outer most layer.
Sensation (Skin Primary function)
(Skin Primary function) Nerve endings in the dermis respond to touch, pain , cold, heat, and pressure.
Heat Regulation (Skin Primary function)
(Skin Primary function) Internal thermostat is set at 98.6.
Excretion (Skin Primary function)
(Skin Primary function) Sudoriferous or sweat glands excrete perspiration and detoxify the body.
Secretion (Skin Primary function)
(Skin Primary function) Sebum is an oily substance that protect and lubricates the skin.
Absorption (Skin Primary function)
Of ingredients, water, oxygen. The skin absorbs oxygen and discharges carbon dioxide
How many skin functions there are.
Transepidermal Water Loss (TEWL)
The water loss caused by evaporation of the skin's surface.
The acid mantle - has a pH of 4.5 to 5.5. Also, protects us from irritation on the epidermis and intercellular water loss (TEWL).
Substance that contribute to the barrier funciton of the epidermis. Are protective oils; they make up intercellular cement between epidermal cells.
Sensory nerve endings in the dermis reposnd to touch, pain, cold, heart, and pressure.
Technical term for oil-water balance on the skin's surface.
98.6 is set for the body's natural thermostat.
Arrector Pili Muscles
Contracts and cause "goose pimples".
Sweat glands are apart of what system?
Sweat glands, excrete perspiration and detoxify the body by excreting excess salt and unwanted chemicals through the pores. Also apart of the acid mantle.
Can be with hair and hairless follicles with oil glands attached to them.
Are openings for sweat glands.
Oils produced by this gland. Helps keep the skin soft and protected from outside elements. Slows down the evaporation of water.
Ingrediants, water, oxygen is necessary for our skin's health. The skin absorbs oxygen and discharges carbon. Vit D is produced in the skin upon sun exposure.
Main names for the layers of the skin.
Most outter layer of the skin. It's thin, protective covering with many nerve endings.
The number of layers the epidermis has.
Beginning name of each epidermis layers.
Keratine protein cells - and epithelial cells protect the epidermis.
Surrounding the cells in the epidermis which protect the cells from water loss and dehydration..
1. Top (outter most) layer of the epidermis. What estheticians primarily concerned with this layer.
Another name for Stratum Corneum.
2. Clear layer of the epidermis. Found on the palms of the hands and soles of the feet. Forms a unique finger/foot print.
Is composed of cells that resemble granules and are filled with keratin. The production of keratin and intercellular lipids takes placer here. These cells become keratanized, they move tto the surface and replace the cells shed from the stratum corneum.
Another name for Stratum Granulosum.
The structures that assist in stregthening and holding cells together . Also are found here are immune cells.
Another name for Stratum Spinosum.
The layer of epidermis located above the papillary layer of the dermis. Cell Mitosis occurs continuously here. Product lipids and contains melanocytes that produce melanin. Merkel cells the sensory cells - are touch receptors also located here.
Basil or Birth Layer
Another name for Stratum Germinativum.
Dermis (name two layers)
Papillary and Reticular.
Dermal Papillary Layer
Membranes of ridges an grooves that attach to the epidermis.
The deeper layer of the dermis, is comprised of hair follicles, glands, blood an lymph vessels, nerve endings, collagen and elastin.
is a protein substance that gives skin its strength and is necessary for wound healing.
Aides in production in collagen and elastin.
Is only about 1/15 of collagen amount. Is a fibrous protien from elastic tissue and gives the skin its elasticity.
Glycosaminoglycan are found between the fibers in the reticular layer. Intercellular substances are comprised of water and other components to maintain water balance.
Composed of adipose tissue or subcutis tissue.
Protective cushion that gives contour and smoothness to the body as well as providing a sense of energy to the body.
Technical name for nail.
Secretory nerve fiber (nerve)
They dispersed to sweat and oil glands. Regular excretion form the sweat gland and control sebum output to the surface.
Sensory nerve fibers
A nerve that sends messages to the brain to react to heat, cold, pain, pressure, and touch.
Motor nerve fibers (nerve)
stimulate muscles, such as the arrector pili muscles causing goose bumps.
The number of nerve classifications.
are the cells pigment granules in the basal layer.
are the pigment granules inside the melanocytes.
Number of glands within the dermis.
Name both glands in the dermis that excret oil and sweat.
Are connected to the hair follicles and producte oil.
Regulate the body's temperature and eliminate waste products excreting sweat. Coiled up base and duct opening at the surface, known as pores.
Coiled up structures attached to the hair follicles found under the arms and in the genital area.
found all over the body, primarily on the forehead, palms and soles. These glands are not connected to hair follicles. They have ducts and pores through which secretion are released. More active when body is subjected to emotion, activity or high temperatures.
Refers to the substance that keeps skin soft and protected.
Deeper layer of skin.
Fiber protein that provides resillency and protection to the skin.
top layer of the skin.
Outermost layer of the skin.
Muscles that cause goose bumps.
a glycosaminoglycan (GAG) that hydrates the skin.
Sense of touch.
Subcutaneous Layer composed of fat.
Makes up 70% of the dermis.
Fibrous protein that forms elastic tissue and gives skin its elasticity.
Intercellular Lipids and Proteins
2 things that surround cells and provide protection, hydration, and nourishment to the cells.
Are atoms or molecules with unpaired electrons.
is caused by photoaging.
Replaced every seven years.
Fluids that nourish the skin.
Have the greatest impack on skin aging.
Synthesized by UVB Rays
Hormone that is key to good health and appearance of skin
Ages the skin when inhaled.
Derived from the basic food groups (Carbs, proteins, and fats).
Supplies nutrients and oxygen to the skin.
Can foster parasitic organisms (mites).
Mexican wild yam, sage, hops, soy.
the term used for dilation of the capillary walls.
Blood vessels and capillaries gets dialated from______
1. Pheomelanin (red/yellow) 2. Eumelanin (dark/black)
Name two types of Melanin
Connects the dermis and epidermis.
Deeper layer of the dermis.
Where collagen is produced.
The fluid matrix in the dermis.
Hard Keratin and 4 to 8 percent sulfer.
3 nerve classifications
1. Motor - arrector Pili 2. Sensory - sends messages to the brain. 3. Secretory - controls sweat and sebum glands.
1. slightly moist 2. soft 3. smooth 4. acidic
4 skin characteristics
Cells that are guard cells.
This cell and epithelial cells protect the epidermis.
One or two pints
How much liquids containing salts are elimintated daily through sweat pores in the skin.
1. Nourishment 2. Protection 3. Function 4. Proliferation
4 elements for cell survival
Phospholipids, glycolipids, cholesterol, triglycerides, squalene, and waxes are?
The structures that assist in stregthening and holding cells together.
Greek word for glue.
Greek word for "to produce".
is an enzyme involved in melanin production.
Name the two types of sweat glands.