| A | B |
|---|
| NEURONS | NERVE CELLS |
| CELL BODY | CONTROL CENTER OF THE CELL-CONTAINS THE NUCLEUS AND CYTOPLASM |
| DENDRITES | FIBERS THAT BRING MESSAGES TO THE CELL BODY |
| AXON | LARGE NERVE FIBER- CARRIES MESSAGES AWAY FROM CELL BODY |
| END PLATE | FINER BRANCHES AT THE END OPPOSITE THE CELL BODY |
| MESSAGES | TRAVEL IN ONLY ONE DIRECTION- THROUGH A NEURON |
| SYNAPSE | SPACE BETWEEN NEURONS-KEEPS MESSAGES TRAVELING IN ONE DIRECTION |
| MYELIN SHEATH | WHITE FATTY SUBSTANCE THAT COVERS SOME NUERONS |
| WHITE MATTER | NEURONS THAT HAVE A MYELIN SHEATH- |
| GRAY MATTER | NEURONS WITHOUT A MYELIN SHEATH |
| SENSORY NEURONS | CARRY MESSAGES FROM THE SENSE ORGANS TO THE BRAIN AND SPINAL CORD |
| MOTOR NEURONS | CARRY MESSAGES FROM THE BRAIN AND SPINAL CORD TO A MUSCLE OR GLAND |
| ASSOCIATION NEURONS | FOUND WITHIN THE BRAIN AND SPINAL CORD-THEY CONNECT THE SENSORY NEURONS TO THE MOTOR NEURONS |
| "REFLEX" | TO TURN BACK- INBORN- UNLEARNED, AUTOMATIC |
| REFLEX ARC | WHEN A MUSCLE RETURNS BACK TO ITS ORIGINAL LOCATION |
| REFLEXES | PROTECT THE BODY- SUCH AS: BLINKING, SNEEZING, COUGHING AND TOUCHING SOMETHING "HOT" |
| RECEPTOR | RECEIVES STIMULES- SUCH AS SKIN OR CELL |
| EFFECTOR | RECORDS STIMULES- SUCH AS MUSCLE OR GLAND |
| INSTINCT | COMPLEX ACT- PERFORMING WITHOUT TRAINING- EX. BIRD BUILDS NEST |
| HABIT | A LEARNED RESPONSE THAT HAS BECOME COMPLETELY AUTOMATIC- EX. NAIL BITING |
| VOLUNTARY ACTION | REQUIRES THOUGHT, REASONING, WILL AND MEMORY TO BRING ABOUT THE DESIRED RESPONSE- EX. COOKING |
| CONDITIONED REFLEX | A REACTION TO A STIMULES WHICH HAS REPLACED THE ORIGINAL STIMULUS- EX. PAVLOV'S DOG- DOG SALIVATES WHEN HE HEARS A BELL RINGING |
| CENTRAL NERVOUS SYSTEM | MADE UP OF THE BRAIN AND THE SPINAL CORD |
| CEREBRUM | LARGEST PART OF THE BRAIN-FORMS THE TOP OF THE BRAIN- RECEIVES SENSORY MESSAGES FROM THE BODY, CONTROLS MUSCLES, AND THINKING |
| CEREBELLUM | BELOW AND BEHIND THE CEREBRUM- COORDINATES THE MUSCLES IN THE BODY- CONTROLS BALANCE |
| MEDULLA OBLONGATA | THE LOWER PART OF THE BRAIN THAT CONNECTS TO THE SPINAL CORD- REGULATES BREATHING, HEART BEAT,AND DIGESTION |
| MENIGES | THREE TISSUES THAT PROTECT AND COVER THE BRAIN AND SPINAL CORD |
| CEREBROSPINAL FLUID | PROTECTS THE BRAIN AND SPINAL CORD |
| FISSURE | DEEP GROOVE- DIVIDES THE CEREBRUM INTO TWO HALVES |
| HEMISPHERES | TWO HALVES OF THE CEREBRUM |
| CORTEX | SURFACE AREA OF THE CEREBRUM- CONTROL BOARD OF THE NERVOUS SYSTEM |
| CONVOLUTIONS | RIDGES OF THE CORTEX |
| PERIPHERAL NERVOUS SYSTEM | CONNECTS THE CENTRAL NERVOUS SYSTEM TO ALL OF THE OTHER PARTS OF THE BODY- 43 PAIRS OF LARGE NERVES |
| CRANIAL NERVES | 12 PAIRS- CONNECT DIRECTLY TO THE BRAIN- INVOLVES: SIGHT, SMELL, TASTE, BALANCE AND OTHER FUNCTIONS |
| VAGUS NERVE | LARGEST CRANIAL NERVE- CONNECTS TO MOST INTERNAL ORGANS- SUCH AS: HEART, LUNGS, STOMACH, INTESTINES, AND GALL BLADDER |
| SPINAL NERVES | 31 PAIRS (PERIPHERAL NERVES)- CONNECTS THE SPINAL CORD TO MOST EXTERNAL AREAS OF THE BODY |
| AUTONOMIC NERVOUS SYSTEM | CONTROLS INTERNAL ACTIVITIES SUCH AS: DIGESTIONS, RESPIRATION,AND CIRCULATION- AUTOMATIC NERVE |
| PARASYMPATHETIC DIVISION (AUTONOMIC NERVE) | RESTRICT OR SLOW DOWN ACTIVITIES |
| SYMPATHETIC DIVISION (AUTONOMIC NERVE) | SPEED UP (HEART RATE) |
| SPINAL CORD | LONG BUNDLE OF NERVES- 31 PAIRS OF NERVES ARE ATTACHED TO THE SPINAL CORD- REACH OUT TO ALL PARTS OF THE BODY |
