| A | B |
|---|
| central nervous system (CNS) is made up of: | brain and spinal cord |
| peripheral nervous system (PNS) is made up of: | sensory neurons, motor neurons |
| another name for a nerve cell | neuron |
| sensory neurons | send messages to the brain from the environment |
| motor neurons | send messages to the muscles (make muscles move) |
| synapse | space between neurons |
| What are the 3 parts of the brain? | cerebellum, cerebrum, medulla |
| What does the cerebrum control? | thought, senses, learning, muscle movement |
| What does the cerebellum control? | balance and coordination |
| What does the medulla control? | breathing, heartbeat |
| What does the spinal cord do? | helps reflexes by sending a message directly to the muscles |
| What parts of the nervous system are involved with reflex actions? | sensory nerves, SPINAL CORD, motor nerves, muscles |
| What is the sense organ that reacts to light? | eye |
| What is the sense organ that reacts to temperature, pain, touch, and pressure? | skin |
| What diagrams do you have to know for the test? | endocrine glands, parts of brain, eye, skin |
| What are the five senses? | sight, touch, taste, smell, hearing |
| reflex | automatic reaction to a sense message |
| stimulus | causes a response |
| response | movement of muscle or hormone secreted as a reaction to a stimulus |
| Which part of the body controls reflexes? | spinal cord |
| reflex arc | reflex action that begins with a receptor, goes to spinal cord, then ends with muscle or gland that reacts |
| receptor | nerve cells that receive stimuli from the environment |
| example of reflex | touch a hot stove and quickly pull hand away |
