Integumentary System Lecture - Edubirdie

University:
California State University, Northridge
Course:
BIOL 101 | General Biology
Academic year:

2022
Views:

473

Pages:

4
Author:

esfredint7qo

CHAPTER 5 Integumentary System Integumentary System 1. Introduction 2. Structure of the Skin a) Epidermis b) Dermis c) Subcutaneous 3. Accessory Structure of the Skin 4. Additional Information Integumentary System • Composed of: • Skin • Hair • Oil and sweat glands • Nails • Sensory receptors • Functions: • Protection • Maintenance of constant body temperature • Dermatology: • Medical specialty dealing with structure, function, and disorders of integumentary system Integumentary System: Skin Skin: largest organ in body (two square meters) • 7 % of body weight Three main layers form integument 1. Epidermis • Avascular (so no bleeding when you just scratch yourself) • Various epithelial cells 2. Dermis • Connective tissue deep to epidermis • Vascular (you bleed If cut deep enough to damage dermis) 3. Subcutaneous • Deep to dermis (but not part of skin) • Contains adipose tissue

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