Pre-text assignment

Date: 2015-10-07; view: 378.

Unit 20

Post-text assignments

1 Describe the structure of the human skin using the picture in the text

2 Answer the questions:

1. What are the functions of skin?

2. What is the melanin? What is it needed for?

3. What does dermis contain?

4. What is the sebum? What is it needed for?

5. How can hypothalamus control your body temperature?

6. What is the pilomotor reflex?

3 Translate the following:

1. As newer cells continue to move up, older cells near the top die and rise to the surface of your skin.

2. The nerve endings in your dermis tell you how things feel when you touch them. They work with your brain and nervous system, so that your brain gets the message about what you're touching.

3. The sweat comes up through pores, tiny holes in the skin that allow it to escape. When the sebum meets the sweat, they form a protective film that's a bit sticky.

4. The subcutaneous layer also helps hold your skin to all the tissues underneath it.

5. Once the sweat hits the air, it evaporates off your skin, and you cool down.

6. When you're cold, your blood vessels keep your body from losing heat by narrowing as much as possible and keeping the warm blood away from the skin's surface.

Learn the key words and phrases:

viral skin disease, germ, ailment, chemical irritant, poison ivy, poison oak, poison sumac, detergent, edema