The Integumentary System

7th Edition

Medical Terminology for Health ProfessionsAnn Ehrlich/Carol L.Schroeder

© 2013 Delmar, Cengage Learning. All Rights Reserved

The Integumentary System

Chapter 12


Overview of Structures, Combining Forms,and Functions of the Integumentary System


Skin

• Primary Function – First line of defense for the immune system– Waterproofs the body– Major receptor for the sense of touch

• Related Word Parts (Combining Forms)– cutane/o– dermat/o, derm/o


The Skin

• Epidermis: outermost layer of the skin• Dermis: thick layer of living tissue directly

below the epidermis• Subcutaneous layer: located just below the

layers of the skin and connects skin tosurface muscles

(continues)


The Skin


Sebaceous Glands

• Primary Function – Secrete sebum (oil) to lubricate the skin– Discourage the growth of bacteria on the skin

• Related Word Parts (Combining Forms)– seb/o


Sweat Glands

• Primary Function – Secrete sweat to regulate body temperature and

water content– Excrete some metabolic waste

• Related Word Parts (Combining Forms)– hidr/o


The Skin

Click Here to play Skin animation


Hair

• Primary Function – Aids in controlling the loss of body heat

• Related Word Parts (Combining Forms)– pil/i, pil/o


Nails

• Primary Function – Protect the dorsal surface of the last bone of

each finger and toe • Related Word Parts (Combining Forms)

– onych/o– ungu/o


Structures of the Fingernails and Toenails


Burns

Click Here to play Burns animation


Key Word Parts and Definitions

• cutane/o – skin

• derm/o, dermat/o – skin

• hidr/o – sweat

• hirsut/o – hairy, rough

(continues)



• kerat/o – horny, hard

• lip/o– fat, lipid

• melan/o– black, dark

• myc/o– fungus

(continues)



• onych/o– fingernail or toenail

• pil/i, pil/o– hair

• py/o– pus

• rhytid/o – wrinkle

(continues)



• seb/o – sebum

• urtic/o – rash, hives

• xer/o – dry


Questions


Question

A human being sheds a complete layer of skinevery 4 months.

True or False?


Answer

False. A human sheds a complete layer of skinevery 4 weeks.


Question

Each square inch of human skin consists of howmany feet of blood vessels?

a. 10b. 20c. 2


Answer

b. 20


Question

Ulcers can occur on the skin as well as withinthe body.

True or False?


Answer

True. An ulcer is an open lesion of the skin ormucous membrane.


Question

The most common form of skin cancer is:a. melanomab. basal cell carcinomac. squamous cell carcinoma


Answer

b. Basal cell carcinoma is the most common,but least harmful, type of skin cancer.


Answers to Learning Exercises


Matching Word Parts 112.1. cutane/o12.2. urtic/o12.3. erythr/o12.4. hidr/o12.5. rhytid/o

Matching Word Parts 212.6. melan/o12.7. lip/o12.8. kerat/o12.9. pedicul/o12.10. dermat/o

Chapter 12 Answers


Matching Word Parts 312.11. xer/o12.12. myc/o12.13. hirsut/o12.14. onych/o12.15. seb/o

Definitions12.16. cellulitis12.17. dysplastic nevi12.18. alopecia areata12.19. hematoma12.20. diaphoresis12.21. cicatrix12.22. bulla12.23. debridement12.24. second-degree12.25. verrucae

Chapter 12 Answers


Matching Structures12.26. keratin12.27. unguis12.28. sebaceous glands12.29. mammary glands12.30. dermis

Which Word?12.31. onychocryptosis12.32. impetigo12.33. laceration12.34. basal cell12.35. necrotizing fasciitis

Chapter 12 Answers


Spelling Counts12.36. psoriasis12.37. eczema12.38. abscess12.39. onychia12.40. scleroderma

Abbreviation Identification12.41. basal cell carcinoma12.42. irrigation and debridement12.43. systemic lupus

erythematosus12.44. malignant melanoma12.45. squamous cell carcinoma

Chapter 12 Answers


Term Selection12.46. granuloma12.47. pediculosis12.48. erythema12.49. scales12.50. carbuncle

Sentence Completion12.51. purulent12.52. onychomycosis12.53. gangrene12.54. albinism12.55. urticaria

Chapter 12 Answers


Word Surgery12.56. rhytid, ectomy12.57. onych/o, myc, -osis12.58. follicul, -itis12.59. prurit, us12.60. ichthy, -osis

True/False12.61. True12.62. False12.63. True12.64. False12.65. True

Chapter 12 Answers


Clinical Conditions12.66. sclerotherapy12.67. albinism12.68. hematoma12.69. abrasion12.70. petechiae12.71. scabies12.72. Mohs’12.73. blepharoplasty12.74. abscess12.75. sleep hyperhidrosis

Which Is the Correct Medical Term?12.76. paronychia12.77. comedo12.78. psoriasis12.79. koilonychia12.80. nevus

Chapter 12 Answers


Challenge Word Building12.81. onychomalacia12.82. hypohidrosis12.83. rhinoplasty12.84. onychoma12.85. melanopathy12.86. onychectomy12.87. anonychia12.88. dermatopathy12.89. mycosis12.90. melanodermatitis

Labeling Exercises12.91. cyst12.92. pustule12.93. vesicle12.94. bulla12.95. ulcer12.96. epidermis12.97. dermis12.98. subcutaneous12.99. sebaceous12.100. sweat

Chapter 12 Answers

The Integumentary System

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