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Anatomy 1-7
| Question | Answer |
|---|---|
| Q: What are the two main divisions of the nervous system? | A: The central nervous system (CNS) and the peripheral nervous system (PNS). |
| Q: What are the basic functional units of the nervous system? | A: Neurons. |
| Q: Which part of a neuron receives signals from other neurons? | A: The dendrites. |
| Q: What is the function of the myelin sheath? | A: It insulates the axon and speeds up nerve impulse transmission. |
| Q: What are the three main parts of the brain? | A: The cerebrum, cerebellum, and brainstem. |
| Q: What is the main function of the cerebellum? | A: It helps coordinate muscle movements and maintain balance and posture. |
| Q: What protects the brain and spinal cord? | A: The meninges and cerebrospinal fluid (CSF). |
| Q: What is the difference between the somatic and autonomic nervous systems? | A: The somatic system controls voluntary movements; the autonomic system controls involuntary body functions. |
| Q: What are the two divisions of the autonomic nervous system? | A: The sympathetic and parasympathetic divisions. |
| Q: What neurotransmitter is mainly used by the parasympathetic nervous system? | A: Acetylcholine. |