Reading Quiz Pages 105-111

The receptors on our taste buds work most like

• receptors in the ears

• receptors in the eyes

• receptor sites on neurons

• receptors in the skin

Which of the following statements about olfactory receptors is FALSE?

• Olfactory receptors are replaced every few years.

• There are at least 1,000 types of olfactory receptors.

• Signals from the receptors go directly to the olfactory bulbs in the brain.

• Olfactory receptors have hairlike projections called cilia.

After some time has passed, you can no longer smell the odor of wet paint that you noticed when you first entered your classroom. Which is most likely the reason for this?

• The smell has gone away.

• You've adapted to the smell, even though it's still there.

• Your nose fell asleep.

• You fell asleep.

Pain sensations in the skin, muscles, tendons, and joints that are carried on large nerve fibers are called

• visceral pain

• somatic pain

• referred pain

• indigenous pain

In gate-control theory, substance P

• opens the spinal gates for pain

• closes the spinal gates for pain

• is unrelated to pain

• is similar in function to endorphins