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Understanding Burns and Skin Development Study Guide

This guide explores the science behind burn injuries, their classification, and how their severity is assessed using the Rule of Nines. It also delves into the fascinating development of the integumentary system, from its embryonic origins to the changes it undergoes with aging, and the impact of UV radiation.

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The Integumentary System Structure and Function

The Integumentary System and Epidermis

The integumentary system consists of skin, sudoriferous glands, sebaceous glands, hairs, nails, and subcutaneous tissue.

  • Integumentary system
  • Epidermis
  • Dermis
  • Subcutaneous tissue
  • Keratinocytes
  • Melanocytes
  • Dendritic cells
  • Tactile epithelial cells
  • Stratum basale
  • Stratum spinosum
  • Stratum granulosum
  • Stratum corneum
  • Thick skin
  • Thin skin
  • Keratinization

Structure and Function of the Dermis

The dermis consists of strong, flexible connective tissue including the papillary dermis and reticular dermis, with skin color determined by melanin, carotene, and hemoglobin.

  • papillary dermis
  • reticular dermis
  • dermal papillae
  • friction ridges
  • cleavage lines
  • flexure lines
  • melanin
  • carotene
  • hemoglobin
  • melanocytes
  • cyanosis
  • pallor

Structure and Function of Hair

Hair consists of dead, keratinized cells produced by hair follicles and includes various regions, structures, and growth cycles.

  • Hair structure
  • Hair follicle
  • Hard keratin
  • Medulla
  • Cortex
  • Cuticle
  • Melanocytes
  • Hair bulb
  • Hair papilla
  • Hair matrix
  • Arrector pili
  • Vellus hair
  • Terminal hair
  • Hirsutism
  • Male pattern baldness
  • Telogen effluvium

Structure and Clinical Significance of Nails

Anatomy and Clinical Significance of Nails

  • Nail structure
  • Nail plate
  • Nail matrix
  • Cuticle
  • Eponychium
  • Hyponychium
  • Lunule
  • Koilonychia

Cutaneous Glands, Skin Functions, and Disorders

Cutaneous Glands and Skin Functions

The skin serves as a barrier providing protection, temperature regulation, and excretion through cutaneous glands including eccrine, apocrine, and sebaceous glands.

  • Eccrine sweat glands
  • Apocrine sweat glands
  • Sebaceous glands
  • Merocrine secretion
  • Holocrine secretion
  • Thermoregulation
  • Sebum
  • Ceruminous glands
  • Mammary glands
  • Chemical barriers
  • Physical barriers
  • Biological barriers
  • Acid mantle
  • Dendritic cells
  • Macrophages
  • Acne

Cutaneous Sensations and Skin Functions

The skin performs metabolic functions, acts as a blood reservoir, excretes nitrogenous wastes, and contains cutaneous sensory receptors.

  • Cutaneous sensory receptors
  • Exteroreceptors
  • Tactile corpuscle
  • Lamellar corpuscles
  • Hair follicle receptors
  • Free nerve endings
  • Metabolic functions
  • Vitamin D synthesis
  • Blood reservoir
  • Excretion of nitrogenous wastes
  • Skin cancer
  • Basal cell carcinoma
  • Squamous cell carcinoma
  • Melanoma
  • ABCD rule

Burn Severity and Integumentary System Development

This content covers burn classification, the rule of nines for estimating fluid loss, and the developmental aspects of the integumentary system from embryonic stages to aging.

  • burn classification
  • rule of nines
  • partial-thickness burns
  • full-thickness burns
  • debridement
  • integumentary system development
  • embryonic development
  • mesoderm
  • lanugo
  • vernix caseosa
  • aging skin

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