1 / 13

INTEGUMENTARY SYSTEM

Chapter 5. INTEGUMENTARY SYSTEM. FUNCTIONS OF THE SKIN. The skin has 7 functions: Covers underlying tissues to protect against dehydration, injury, and germ invasion Regulates body temperature Helps manufacture vitamin D Serves as the site of many nerve endings. FUNCTIONS OF THE SKIN.

annot
Download Presentation

INTEGUMENTARY SYSTEM

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 5 INTEGUMENTARY SYSTEM

  2. FUNCTIONS OF THE SKIN • The skin has 7 functions: • Covers underlying tissues to protect against dehydration, injury, and germ invasion • Regulates body temperature • Helps manufacture vitamin D • Serves as the site of many nerve endings ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

  3. FUNCTIONS OF THE SKIN • Temporarily stores fat, glucose, water, and salts • Screens out ultraviolet radiation • Absorbs certain drugs and chemical substances ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

  4. STRUCTURE OF THE SKIN • Layers of the skin: • Epidermis - the outermost covering of epithelial cells with no blood vessels • Dermis - true skin made of connective tissue and is vascular • Subcutaneous (hypodermal layer) lies under the dermis and consists of loose connective tissue ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

  5. STRUCTURE OF THE SKIN ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

  6. APPENDAGES OF THE SKIN • Hair • Nails • Sweat Glands • Sebaceous Glands ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

  7. THE INTEGUMENT AND ITS RELATIONSHIP TOMICROORGANISMS • Most skin bacteria are associated with hair follicles or sweat glands where nutrients and moisture are present • The best way to prevent disease is by washing the hands ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

  8. Acne vulgaris Athlete’s foot Dermatitis Eczema Impetigo Psoriasis Ringworm Urticaria (hives) Boils Herpes Genital herpes Shingles (herpes zoster) REPRESENTATIVE DISORDERS OF THE SKIN ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

  9. SKIN CANCER • Basal cell carcinoma is the most common and least malignant skin cancer • Squamous cell carcinoma occurs in the epidermis and grows rapidly • Malignant melanoma is present in pigmented cells called melanocytes ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

  10. BURNS • Burns are the result of radiation from sun, heat, boiling water, steam, fire, chemicals, and electricity ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

  11. BURNS • Classification of burns • First degree burns • epidermis • Second degree burns • epidermis and dermis • Third degree burns • destruction of epidermis, dermis, and subcutaneous ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

  12. SKIN LESIONS • Pressure Ulcers (Decubitus) are the result of constant pressure against an area of tissue that lies over a bone ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

  13. SKIN LESIONS • 4 Stages of pressure ulcers are: • Stage I - skin is red but unbroken • Stage II - blisters; broken or unbroken • Stage III - all layers of skin are broken • Stage IV - ulcerated area involves underlying muscles, tendons, and bones ©2004 Delmar Learning, a Division of Thomson Learning, Inc.

More Related