Chapter 24 Support and Movement Test

Based only on normal working conditions and equal skin pigmentation at the start, which of these people will produce the most melanin?

• an underground coal miner in Pennsylvania

• a corn, wheat, and oats farmer in Iowa

• a bank teller in Alaska

• a night watchman in Mexico

Which of the following is not true of a blister?

• It can result from intense heat.

• It is an area of thickened epidermas.

• It contains fluids trapped under the skin.

• The skin layers separate.

A sunburn is a burn caused by

• visible light

• gamma rays

• x-rays

• ultraviolet light

Dale accidentally touched a hot stove and received a minor burn. He should immediately

• submerge the burn in cold water

• put ice on the burn

• put butter or margarine on the burn

• go to the hospital

The layer of skin that contains many blood vessels, nerve receptors, and hair follicles is the ____.

• epidermis

• dermis

• subcutaneous layer

• epicutaneous layer

The white tissue that covers the surface of a bone is the

• periosteum

• ligament

• spongy bone

• cartilage

Which of the following does not happen when the skin attempts to cool the body?

• Perspiration is released by the sweat glands.

• Blood flow to the skin is increased

• Blood flow to the skin is decreased.

• Sweat evaporates, cooling the skin

When your biceps contracts, your triceps

• relaxes

• contracts

• rotates to the right

• sags

Most voluntary muscles are

• smooth muscles

• muscles of the stomach and the intestines

• the muscles of the heart

• skeletal muscles

____ are bands of connective tissue that connect two bones.