Name 2 functions of the skin: 1.Maintains homeostasis 2. Protective covering 3. Retards water loss 4. Regulates body temperature 5. Houses sensory receptors 6. Contains immune system cells 7. Synthesizes chemicals 8. Excretes small amounts of waste
Name the major layers of the skin: Epidermis Dermis Hypodermis
In which layer of the epidermis does cell growth occur? Stratum basale
What plays the largest role in determining skin tone? Genetics
Name 2 physiological factors that affect skin tone: Temperature Emotions (embarrassment) Food
Name 2 environmental factors that affect skin tone: Sunlight UV light from lamps X rays
T/F: The darker you are, the more melanocytes you have False Please correct the statement: –The darker you are the more melanin you have
In what specific layer are melanocytes found? Stratum basale
When do arrector pilli muscles contract? When you are cold
What do sebaceous gland secrete? Sebum
What is the function of apocrine glands? To secrete a fluid that develops a scent
What is the function of a eccrine gland? To secrete a fluid that decreases body temperature
What are nails composed of? Highly keratinized epithelial cells
What is the most active region of hair growth called? Hair root
T/F: The hair papilla is in the deep layer of the epidermis. False Please correct the statement: –The hair papilla is in the deep layer of the dermis
Be able to: Describe the skin’s role in temp regulation Describe the role of melanin Describe the classification of burns Describe how a wound heals