SKIN EXAM 1 2024
The science of skin Histology and Physiology - CORRECT ANSWERS-Includes the
functions, layers and anatomy of the skin
Skin histology - CORRECT ANSWERS-Is the study of the structure and composition of
the skin tissue
Physiology - CORRECT ANSWERS-Is the study of the functions of a living organisms
An esthetician's primary focus - CORRECT ANSWERS-Is on preserving protecting and
nourishing the skin
Skin/Integumentary System - CORRECT ANSWERS-Is the largest organ in the body; it
is a strong barrier designed to protect us from the outside elements
Regulates and protects the body - CORRECT ANSWERS-Skin layers, nerves, cellular
functions, hair follicles and glands
Controls the skins intricate functions - CORRECT ANSWERS-Hormones,growth factors
and other biochemicals
Proteins - CORRECT ANSWERS-The basic material and a building blocks for our
bodies tissues
Proteins - CORRECT ANSWERS-Made up of amino acids
Proteins - CORRECT ANSWERS-Foundation of our cells and skin
Amino acids - CORRECT ANSWERS-Form peptides (part of a protein) and proteins
Peptide bonds - CORRECT ANSWERS-Hold amino acids together
Polypeptides - CORRECT ANSWERS-Chains of amino acids
Appendages of the skin - CORRECT ANSWERS-Include hair, nails, sweat glands and
oil glands
Healthy skin - CORRECT ANSWERS-Is slightly moist soft, smooth and somewhat
acidic
, Skin is - CORRECT ANSWERS-Thickest on the palms of the hands and soles of the
feet; it is thinnest on the eyelids
Six primary skin functions - CORRECT ANSWERS-Sensation, Heat regulation,
Absorption, Protection, Elimination/Excretion, Secretion; SHAPES
Sebum(oil) on the epidermis - CORRECT ANSWERS-Gives protection from external
factors such as invasion by certain bacteria
Acid mantle - CORRECT ANSWERS-Is the protective barrier made up of sebum, lipids,
sweat and water; part of the skins Natural Barrier function
Hydrolipidic - CORRECT ANSWERS-Film that protect the skin from drying out and from
exposure to external factors; An oil water balance on the skin surface
Acid mantle - CORRECT ANSWERS-Has an average pH of 5.5; balanced pH of the
skin is important for maintaining the proper acidic level of 5.5 to protect from pathogens
and for regulating enzymatic functions
Barrier function - CORRECT ANSWERS-Is the skins mechanism that protects us from
irritation and intercellular transepidermal water loss (TEWL); Damage to barrier layer
causes skin problems such as sensitivities, aging and dehydration
Transepidermal water loss (TEWL) - CORRECT ANSWERS-The water loss caused by
evaporation of the skin surface
Lipids - CORRECT ANSWERS-Substances that contribute to the barrier function of the
epidermis; are protective oils and are part of the intercellular matrix (fluid); protects the
cells from water loss and dehydration; 5% in the stratum corneum are ceramides
Intercellular matrix (fluid) - CORRECT ANSWERS-Fluid between epidermal cells
Skins most amazing feature - CORRECT ANSWERS-Is the ability to heal itself
Epidermal growth factor (EGF) - CORRECT ANSWERS-Are hormones that stimulates
skin cells to reproduce and heal
Fibroblasts - CORRECT ANSWERS-Cell stimulators; produce collagen and elastin;
proteins and peptides trigger these and cells to rejuvenate
Melanin - CORRECT ANSWERS-Another form of protection in the skin; the pigment
that protects us from the sun
Melanin - CORRECT ANSWERS-Is the pigment in the eyes, hair and skin that gives us
some protection from the UV rays emitted by the sun