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Final
Nervous system and lymphatic system
| Question | Answer |
|---|---|
| Describe the generalized functions of the nervous system. | Sensory – gathers information from inside and outside the body. Integration – interprets the information and decides what to do. Motor – sends commands to muscles or glands to respond. |
| Identify and describe the various subdivisions of the nervous system | Central nervous system brain and spinal cord. Peripheral nervous system nerves outside the CNS. |
| What are the main functions of the nervous system? | To sense changes, process information, and cause the body to respond. |
| How are neurons classified by structure? | Multipolar, bipolar, and unipolar neurons |
| What are the 3 parts of a simple reflex arc? | A sensory neuron, an interneuron, and a motor neuron |
| Where are major lymph nodes found? | Ineck, armpits, and groin |
| What do lymph nodes do? | Filter lymph and help activate immune cells |
| How are lymph vessels similar to veins? | Both have thin walls and valves that keep fluid moving one way |
| What cells work in the immune/lymphatic system? | Lymphocytes (B and T cells), macrophages, and dendritic cells |
| What are examples of the body’s barriers of defense? | Skin, mucus, stomach acid, and tears |
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