Integumentary System

Part I:

Skin and it’s Tissues

• Organ:1.

2.

• Functions

Introduction

Introduction• Epidermis

1. 2.

• Dermis1. 2. 3. 4.

• Subcutaneous layer (or hypodermis)1.

2.

3.

4. Loose connective and adipose tissue

5. Contains major blood vessels

Introduction

Epidermis

1.

2.

3. Stratum basalea.

b.

c. Cells can divide

Epidermis 4. Keratinization:

a.

b.

5. Stratum corneum:a.

b.

Epidermis6.

7. Thickness of epidermis variesa.

b.

8. Healthy skina.

Epidermis9. Calluses

a. b. c.

10. Cornsa. b.c.

11. Psoriasisa. b.

Epidermis12. Melanocytes

a.

b.

13. Melanina.

b.

c.

Epidermis14. Sunburn

a.

b.

15. Tanninga.

b.

c.

d.

Dermis1.

2.

3. These “undulations” cause fingerprints

Dermis4.

5. Componentsa.

b.

c.

d.

Dermis

• Tattoos

• Allergic contact dermatitis

• Irritant contact dermatitis

Skin Cancer1. 2. Cutaneous carcinomas

a. b. c. d.

3. Cutaneous melanomasa. b. c. d