Receptors and Structures of Humans and Animals

What are the three main skin receptors?

• touch, temperature, pain

• touch, temperature, ear

• teeth, temperature, pain

• touch, eyes, pain

What do receptors respond to?

• To the skin

• Humans and the environment

• Changes inside and outside the body

• The brain

Touch and pressure receptors react to...

• sound and music

• color and light

• pressure, vibration, and texture

• taste and smell

If you hold an ice cube, your hand receptors will

• cause your hand to get hotter

• send signals to your brain indicating cold temperature
• make your hand feel warm
• send signals to your leg indicating hot temperature

When the skin feels intense pressure or is injured, pain receptors send messages to

• lungs
• heart
• stomach
• brain

Human are not the only organisms that have a central nervous system. All mammals, fish, insects and birds rely on a

• peripheral nervous system

• respiratory system

• central nervous system

• digestive system

Which kind of receptor tells the brain if you are cut?

• heat

• sight

• light

• touch

The spinal cord is also known as the

• backbone

• arm

• nose

• ribcage

You are able to smell odors and aromas because your have smell receptors in your _________.

• nose
• eyes
• mouth
• ears

_____________ have the strongest smell.

• Tigers

• Elephants

• Mice

• Anteaters