EXAM STUDY GUIDE 2026 COMPLETE
QUESTIONS AND ANSWERS 100% VERIFIED
⫸ Squamous - Flat and scaly keritinized cells
⫸ Stratum Corneum (horny layer) - Outmost layer of the EPIDERMIS
⫸ Stratum lucidum (clear, transparent layer) - Clear layer of dead cells
under the Stratum Corneum. Thickest on the palms and soles of feet
⫸ Clear Keratin - Keratinocytes in the stratum lucidum layer contain
this
⫸ Intercellular Lipids - Triglycerides, ceramides, waxes, fatty acids
made in the stratum granulosom layer
⫸ NMF - Natural moisturizing factors. Hydrate the lipid layer, absorb
water and prevent water loss
⫸ Desmosomes - Structures holding cells together
⫸ Stratum Spinosum (spiny layer) - Largest layer of the epidermis.
Under the stratum granulosum layer
,⫸ Histology - The study of structure and composition of skin tissue
⫸ Physiology - The study of functions of living organisms
⫸ Esthetician - aka Technicians, Skin Specialist, Skin Therapists
⫸ Esthetician Primary Focus - Preserving, Protecting and Nourishing
the Skin
⫸ Why must understand the Physiology and Histology? - Must
understand the skin and how it functions in order to effectively treat
their clients
⫸ Integumentary System - Skin - the largest organ in the body
⫸ What works together to regulate and protect the body? - Skin layers,
Nerves, Cellular functions, Hair Follicles and Glands
⫸ What are proteins? - Basic material & building blocks of the body's
tissue
⫸ Amino Acids - Serve as building blocks for Protein
, ⫸ Protein Process - Amino Acids form Peptides & Protein
⫸ Polypeptides - Chains of Amino Acids
⫸ Appendages of the Skin - Hair, Nails, Sweat, Glands and Oil Glands
⫸ What is healthy Skin? - Slightly moist, soft and somewhat acidic
⫸ Skin is Thickest? - Palms and Soles of Feet
⫸ Skin is Thinnest - Eyelids
⫸ Amount of Blood in Skin - 1/2 to 2/3 of Blood in the body
⫸ Amount of Immune Cells in Skin - 1/2 of the immune cells
⫸ An inch of skin contains - 8ft of Blood Vessels, 32ft of Nerves,
Millions of Cells, 100 Oil Glands, 65 Hairs, 1,300 Nerve Endings, 155
Pressure Receptors, 12 Cold and Heat Receptors
⫸ 6 Primary Skin functions - Sensation, Heat Regulation, Absorption,
Protection, Excretion and Secretion