Checkpoint: nerves and hormones

Which two systems keep a body's parts working in step?

• The lungs and the kidneys
• The nervous system and hormones
• The bones and the skin

A signal reaches the end of a neuron. How does it cross the gap to the next cell?

• As a chemical
• As a sound
• As electricity

A hand touches a hot pan. Where does the order to the muscle start?

• In the forebrain
• In the cerebellum
• In the spinal cord

Which brain part keeps the body balanced?

• The medulla
• The cerebellum
• The forebrain

Which hormone needs iodine to be made?

• Adrenaline
• Growth hormone
• Thyroxin

After a meal, blood sugar falls back to normal. What does the pancreas do?

• It makes less insulin
• It makes more insulin
• It makes more adrenaline