| A | B |
|---|
| Central Nervous System (CNS) | consists of the brain & spinal cord |
| Brain | important organ that controls all body activities |
| Spinal Cord | extension of the brain stem; protected by vertebrae |
| Autonomic Nervous System (ANS) | controls involuntary actions like breathing, digestion and heart rate |
| Neuron | another name for a nerve cell |
| Cell Body | the part of a neuron that contains the nucleus |
| Axon | carries messages away from the cell body |
| Dendrites | receive messages from other neurons |
| Synapse | a small "gap" between neurons |
| Sensory Neuron | allows you to interpret sensory information; example- a loud noise |
| Motor Neurons | affect muscle movement |
| Interneurons | "communicate" between sensory & motor neurons |
| Cerebrum | largest part of the brain; divided into 2 hemispheres |
| Cerebellum | part of the brain that controls muscle movement & balance |
| Brain Stem | connects the brain to the spinal cord; controls involuntary actions |
| Reflex | an involuntary, protective, and automatic response to a stimulus |
| Stroke | can occur when there isn't enough oxygen getting to the brain |
| Phineas Gage | the man that had a large rod go through his skull, but survived without much harm |
| Right Hemisphere | controls left side of the body |
| Left Hemisphere | controls right side of the body |
