mtless6f99integumentary

							Medical Terminology

     Integumentary System
           Chapter 6
          Student Objectives
• Define the main functions of the
  integumentary system and its appendages.
• Identify combining forms, suffixes, and
  prefixes related to the integumentary
  system.
• Identify several primary and secondary skin
  lesions.
• Explain major skin problems caused by
  exposure.
          Student Objectives

• Identify diagnostic, symptomatic, and
  therapeutic terms and procedures related to
  the integumentary system.
• Define the abbreviations related to the
  integumentary system.
• Explain pharmacology related to the
  treatment of integumentary disorders.
 Functions of the Integumentary
            System
• skin
  –   protects against bacterial invasion
  –   reservoir for food and water
  –   sensory receptor
  –   synthesis of vitamin D
  –   regulate body temperature and water
  –   prevents dehydration
            Epidermis
• outermost layer
• epithelium
  – strata or layers
  – keratin (a fibrous protein)
• no blood vessels or nerve supply in
  epidermis
         Dermis or Corium
Living Tissue
  capillaries
  lymphatics
  nerve endings
  hair follicles
  glands (sebaceous and
  sweat)
 Subcutaneous or Hypodermis
• connective tissue layer
• specializes in formation of fat
• adipose or fat cells provide a food reserve
  and insulation
        Appendages of the Skin
•   Hair
•   Glands
•   Nails
•   Breasts
                     Hair
•   hair shaft
•   hair follicles
•   papilla
•   alopecia
            Glands of the Skin
• sudoriferous
   – sweat glands
   – cool the body
• sebaceous
   – sebum(oil)
• ceruminous glands
   – modified sweat glands
     located in ear canals
   – cerumen
Nails
   • cuticle
   • lunula
   Breasts or Mammary Glands
• Present in both males and females
• estrogen stimulation causes adipose tissue
  and increased size
• progesterone stimulation causes formation
  of lobules for milk production
               Suffixes
•   -cyte
•   -derma
•   -gram
•   -graph
•   -graphy
•   -logist
•   -logy
•   -therapy
             Prefixes
•   Epi-
•   hyper-
•   hypo-
•   sub-
                       Pathology
• Primary Skin Lesions
  – often due to healing process
• Secondary Skin Lesions
  – result of the primary skin lesions
     •   excoriation
     •   abrasion
     •   contusion
     •   laceration
     •   ulcers
     •   cicatrix
     •   keloid
              Primary Lesions
•   macule
•   papule
•   nodule
•   vesicle
•   bulla
•   pustule
•   wheal
•   scales
•   fissure
         Burns-First Degree
            Superficial

•   Outer Layer of Epidermis
•   erythema
•   hyperesthesia
•   Example: Sunburn
   Burns-Second Degree
     Partial Thickness

• damages portion of
  epidermis and dermis
• vesicles or bullae
• regeneration can occur if no
  infection
        Burns-Third Degree
          Full-Thickness

• involves epidermis and dermis
• can extend into subcutaneous
  tissue, bone and muscle
• cannot heal spontaneously
• dermatoplasty
                   Frostbite
• Local skin destruction
• Result of freezing
• Classified according to severity
  – first, second, third
                Oncology
• Neoplasm
  – malignant or benign
  – metastsize
• TNM system
  – T-size and extent of primary tumor
  – N-number of lymph nodes involved
  – M-metastases of primary tumor
                  Carcinoma
• Basal Cell Carcinoma
• Carcinoma of the Breast
  – nulliparous, menarche
• Squamous Cell Carcinoma
  – in situ, invasive
• Malignant Melanoma
  – melanocytes
       Diagnostic, Symptomatic,
          Therapeutic Terms
•   Chloasma
•   comedo
•   decubitus ulcer
•   dermatomycosis
•   desqumation
•   ecchymosis
•   eczema
       Diagnostic, Symptomatic,
          Therapeutic Terms
•   Erythema
•   eschar
•   hirsutism
•   impetigo
•   keratosis
•   lentigo
•   pallor
•   pediculosis
       Diagnostic, Symptomatic,
          Therapeutic Terms
•   Pemphigus
•   petechia, petechiae
•   pruritus
•   psoriasis
•   purpura
•   scabies
•   tinea
•   urticaria
•   vitiligo
•   verruca
     Diagnostic Procedures
• Mammography, mammogram
• xeromammography
        Surgical and Therapeutic
              Procedures
•   Allograft, skin graft, xenograft
•   biopsy
•   debridement
•   dermabrasion
•   fulguration
•   lumpectomy
•   mammoplasty, mastectomy
               Pharmacology
•   Anti-infectives, antibacterials, antifungals
•   anti-inflammatory, topical corticosteriods
•   antipruritics
•   antiseptics
•   keratolytics
•   parasiticides
•   protectives
•   topical anesthetics
               Abbreviations
•   Bx
•   decub.
•   Derm.
•   FS
•   I&D
•   ID
•   SC, sc, subcu, subq
•   ung
End of Chapter 6