Intro Medical-Surgical Nursing by Timby & Smith: Ch 64 Caring for Clients with Integumentary Disorders: Epidermal and Dermal Structure, Keratinization and Melanin Pigmentation, Cutaneous Sensory Receptors, Thermoregulation Mechanisms (Radiation, Conductio

Intro Medical-Surgical Nursing by Timby & Smith: Ch 64 Caring for Clients with Integumentary Disorders: Epidermal and Dermal Structure, Keratinization and Melanin Pigmentation, Cutaneous Sensory Receptors, Thermoregulation Mechanisms (Radiation, Conduction, Convection, Evaporation), Glandular Secretions (Sebaceous, Eccrine, Apocrine), Hair Variations, Pressure Injury Staging, Skin Lesion Classification, Color Variations and Pathophysiologic Indicators, Mechanical Tissue Forces (Friction and Shearing), and Diagnostic and Therapeutic Dermatologic Interventions Including Cryosurgery, Laser Therapy, Electrodesiccation, Wood’s Light Evaluation, and Photochemotherapy Exam Questions Verified and Provided with A+ Graded Rationales Latest Updated 2026 integument includes structures that cover the bodys exterior surface epidermis the outermost layer dermis lies below the epidermis, true skin stratum corneum outer layer of dead skin cells that forms a tough protective protein (keratin) keratin hard protein material found in the epidermis, hair, and nails How often is the epidermis replaced? approx 35-45 days subcutaneous tissue layer of skin attached to muscle and bone that is primarily composed of connective tissue and fat cells melanin A pigment that gives the skin its color radiation the transfer of surface heat in the environment conduction the transfer of heat through contact evaporation the loss of moisture or water convection the transfer of heat by means of currents of liquids or gases mechanoreceptors detect touch, location, pressure, motion, vibration, size and texture Thermoreceptors perceive sensations of heat and cold nociceptors sense and transmit the location of pain stimuli vellus hair wooly or wispy texture terminal hair coarser variety that develops at puberty under the influence of androgens in the axillae, pubic, face, arms, chest, and legs sebaceous glands are connected to each hair follicle and secrete an oily substance sebum oily substance secreted by sebaceous glands eccrine glands release water and elecrolytes apocrine glands found around the nipples, in the anogenital region, in the eyelids, in the mammary glands and external ear canals pheromones hormone-like chemicals that communicate reproductive and social information among species released by the apocrine gland senile lentigines