| A | B |
| Parts of the neuron | dendrites, cell body, axon, axon (synaptic) terminals |
| Peripheral nervous system | cranial nerves and spinal nerves |
| Neurons | The nervous system is made up of nerve cells called |
| Sensory neuron | Transmit impulses from the sense organs (receptors) to the spinal cord and brain |
| cerebrospinal fluid | Found in the spinal cord and brain to protect and deliver nutrients |
| Motor neuron | Transmit impulses from the brain and spinal cord to effectors (muscle or gland) |
| Central Nervous System | Consist of a brain and spinal cord |
| Brain | Is a large mass of neurons located in the cranium (skull) |
| Cerebrum | Center of control for: voluntary body movements, 5 senses, emotions, and memory |
| Cerebellum | Coordinates motor activities and aids in maintaining balance |
| Medulla oblongata | Involuntary activities like breathing, digestion and heartbeat |
| meninges | three layered covering of the brain and spinal cord |
| Spinal Cord | Coordinates activities between the brain and other body structures |
| Somatic Nervous System | Consist of nerves that regulate voluntary muscles of the skeleton |
| Autonomic Nervous System | Consists of nerves that regulate involuntary actions like heartbeat and gland secretions |
| cones | photoreceptors in the eye that recognize color |
| Meningitis | Inflammation of the membrane that surrounds the brain and spinal cord |
| rods | photoreceptors in the eye that are the most sensitive, but see no color |
| blind spot | the area where the optic nerve passes out of the eye (lacking rods and cones) |
| left cerebral hemisphere | controls the right side of the body, spoken and written language, logic, reasoning, and scientific and mathematical abilities |
| right cerebral hemisphere | controls the left side of the body and is associated with imagination, spatial perception, recognition of faces, and artistic and musical abilities |
| concussion | an injury to the brain caused by a blow or jolt to the head that disrupts the normal functioning of the brain |
| lobes | frontal, parietal, occipital, and temporal |
| corpus callosum | connects the two hemispheres of the brain |
| hypothalamus | regulates body temp., water balance, sleep-wake cycles, hunger, thirst, emotions and hormone production |