Anatomy & Physiology Chapter 2: Integumentary System Waggy

Key Concepts

Where is skin found? Skin is found throughout the body, Your skin is made up of epithelial cells. There are 3 types of epithelial cells:

1. Squamous Cells Function: Shape: Location:

2. Cuboidal Cells Function: Shape: Location:

3. Columnar Cells Function: Shape: Location:

Identify these tissues:

Function of the Integumentary System (skin) Protection Excretion . Dessication 2

Structure of the skin Thickest Thinnest Layers of the skin: 1. 2. 3. 3

4

1. Epidermis Protects the body against Epidermis is made up of 5 layers: a. b. c. d. e.

2. Dermis Composed of fibrous connective tissue . Dermal blood vessels are important for

Hypodermis (aka subcutaneous) Made up of adipose (fatty) tissue Functions:

Glands of the skin Three types of integumentary glands 1. 2. 3.

1. Sebaceous glands (oil glands) Functions: 24

2. Sudoriferous Glands (sweat glands) Two types: Apocrine glands: Eccrine glands:

3. Ceruminous Glands Specialized sweat glands found in the ear canal .

Injuries to the skin: burns Can be fatal, disfiguring, or incapacitating . 3rd largest cause of accidental death

Burn Injuries Complications .

Burn Classifications 1st degree (Superficial burn)

Burn Classifications 2nd degree (partial thickness burn)

3rd degree (full thickness burn) Burn Classifications 3rd degree (full thickness burn)

Skin Cancer The three major types of skin cancer are: 1. 2. 3.

Basal Cell Carcinoma .

2. Squamous Cell Carcinoma

3. Melanoma .

Skin Color Skin color results from three different pigments: 1. Hemoglobin: 2. Carotene: 3. Melanin: 13

The End