| A | B |
| CNS | Central Nervous System; consists of brain and spinal cord. |
| PNS | Peripheral Nervous System; includes all nervous tissue outside the CNS. |
| Sensory Functions | Detects different kinds of stimuli.AKA afferent neurons. |
| Interogative Functions | Analyzes and stores information from the senses.AKA Interneurons |
| Motor Functions | Responds to the Intorogative Functioning.AKA efferent nuerons |
| Brain | houses billions of neurons. |
| Spinal Cord | Contains Millions of neurons, and is connected directly to the brain. |
| Cranial Nerves | Emerge from base of brain. |
| Spinal Nerves | Emerge from spinal cord. |
| Nerve | A bundle containing hundreds to thousands of axons and is assoc. with connective tissue and blood vessels. |
| Mixed Nerves | Contain Axons of both Sensory and Motor Neurons |
| Ganglia | Small clusters of Neuronal cell bodies that are located outside the brain and spinal cord |
| Enteric Plexuses | Help regulate digestive system |
| Somatic Nervous System | Consists of Sensory Neurons that convey info from somatic receptors in the head, body wall, and limbs and from receptors for the special senses of vision hearing taste and smell to the CNS.Voluntary |
| Autonomic Nervous System | Sensory nuerons that convey info from the autonomic sensory receptors located in visceral organs such as the stomach and lungs to the CNS. Involuntary |
| Enteric Nervous System | Brain of the gut. approximately 100 million enteric plexuses that extend the entire lenth of the gastrointestinal tract. |
| Sympathetic Division | Makes your heart rate speed up and breathing harder. Sweaty cold palms. |
| Parasympathetic Division | Slows down the heavy breathing. brings your body back to homeostasis. |