Milady Physiology and Histology of
the Skin (2025-2026) Test Exam with
Correct Verified and Well Analyzed
Answers Graded A+
The science of skin Histology and Physiology
Includes the functions, layers and anatomy of the skin
Skin histology
Is the study of the structure and composition of the skin tissue
Physiology
Is the study of the functions of a living organism
An esthetician's primary focus
Is on preserving protecting and nourishing the skin
Skin/Integumentary System
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
Skin layers, nerves, cellular functions, hair follicles and glands
Controls the skins intricate functions
Hormones,growth factors and other biochemicals
Proteins
The basic material and a building block for our body’s tissues
Proteins
Made up of amino acids
Proteins
Foundation of our cells and skin
Amino acids
Form peptides (part of a protein) and proteins
Peptide bonds
Hold amino acids together
Polypeptides
Chains of amino acids
Appendages of the skin
, Include hair, nails, sweat glands and oil glands
Healthy skin
Is slightly moist soft, smooth and somewhat acidic
Skin is
Thickest on the palms of the hands and soles of the feet; it is thinnest
on the eyelids
Six primary skin functions
Sensation, Heat regulation, Absorption, Protection,
Elimination/Excretion, Secretion; SHAPES
Sebum(oil) on the epidermis
Gives protection from external factors such as invasion by certain
bacteria
Acid mantle
Is the protective barrier made up of sebum, lipids, sweat and water;
part of the skins Natural Barrier function
Hydrolipidic
Film that protects the skin from drying out and from exposure to
external factors; An oil water balance on the skin surface
Acid mantle
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
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)
The water loss caused by evaporation of the skin surface
Lipids
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)
Fluid between epidermal cells
Skins most amazing feature
Is the ability to heal itself
Epidermal growth factor (EGF)
Are hormones that stimulates skin cells to reproduce and heal
the Skin (2025-2026) Test Exam with
Correct Verified and Well Analyzed
Answers Graded A+
The science of skin Histology and Physiology
Includes the functions, layers and anatomy of the skin
Skin histology
Is the study of the structure and composition of the skin tissue
Physiology
Is the study of the functions of a living organism
An esthetician's primary focus
Is on preserving protecting and nourishing the skin
Skin/Integumentary System
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
Skin layers, nerves, cellular functions, hair follicles and glands
Controls the skins intricate functions
Hormones,growth factors and other biochemicals
Proteins
The basic material and a building block for our body’s tissues
Proteins
Made up of amino acids
Proteins
Foundation of our cells and skin
Amino acids
Form peptides (part of a protein) and proteins
Peptide bonds
Hold amino acids together
Polypeptides
Chains of amino acids
Appendages of the skin
, Include hair, nails, sweat glands and oil glands
Healthy skin
Is slightly moist soft, smooth and somewhat acidic
Skin is
Thickest on the palms of the hands and soles of the feet; it is thinnest
on the eyelids
Six primary skin functions
Sensation, Heat regulation, Absorption, Protection,
Elimination/Excretion, Secretion; SHAPES
Sebum(oil) on the epidermis
Gives protection from external factors such as invasion by certain
bacteria
Acid mantle
Is the protective barrier made up of sebum, lipids, sweat and water;
part of the skins Natural Barrier function
Hydrolipidic
Film that protects the skin from drying out and from exposure to
external factors; An oil water balance on the skin surface
Acid mantle
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
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)
The water loss caused by evaporation of the skin surface
Lipids
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)
Fluid between epidermal cells
Skins most amazing feature
Is the ability to heal itself
Epidermal growth factor (EGF)
Are hormones that stimulates skin cells to reproduce and heal
