Section 3 Summary and Wordlist

Section 3 Summary

The Central Nervous System (CNS) receives and interprets nerve impulses from all parts of the body.

Nerve impulses for voluntary movements go from the brain to the muscles. These movements aren’t automatic. We decide to make them.

Sensory nerves transmit the information to the central nervous system.

Motor nerves transmit the nerve impulses from the brain to the muscles.

Involuntary movements go from the spinal cord to the muscles. Some examples are shivering when you are cold, yawning when you are tired, hearing, blinking when something is very close to your eyes and dying. Sneezing is also involuntary.

Section 3

Damage – enduring harm or destruction that reduces value.

React – to respond to a stimulus, behave differently as a result of something.

Paralysis - a disease that affects the brain and you can’t move.

Automatic – that works on its own.

Seat belts – something to support a person in a sitting position like a chair.