Multiple choice questions:

1. Which system carries and brings messages to and from the brain?
   1. muscular system
   2. excretory system
   3. nervous system
   4. skeletal system
2. The largest part of the brain is the:
   1. cerebrum
   2. cerebellum
   3. medulla
   4. axon
3. The nerve that carries a message from a body part to the brain is called:
   1. motor nerve
   2. sensory nerve
   3. mixed nerve
   4. optic nerve
4. Medulla controls:
   1. involuntary actions
   2. voluntary actions
   3. reflex actions
   4. none of these
5. A person might faint if his heart does not send enough blood to his:
   1. feet
   2. house
   3. kidneys
   4. brain