Answer :
Final answer:
The nervous system is divided into the Central Nervous System (CNS) and the Peripheral Nervous System (PNS). The CNS consists of the brain and spinal cord, while the PNS connects the CNS to the body and includes both the somatic and autonomic systems. The autonomic system manages involuntary functions, whereas the somatic system handles voluntary movements.
Explanation:
The Nervous System Overview
The two fundamental anatomical divisions of the nervous system are the Central Nervous System (CNS) and the Peripheral Nervous System (PNS). The CNS consists of the brain and spinal cord, while the PNS includes all the nerves that connect the CNS to the rest of the body.
The PNS is further divided into the somatic nervous system and the autonomic nervous system. The autonomic nervous system controls involuntary bodily functions, such as heart rate and digestion, and includes the sympathetic and parasympathetic divisions. The somatic nervous system, on the other hand, governs voluntary muscle movements.
Summary of Nervous System Divisions
- CNS: brain and spinal cord
- PNS: peripheral nerves
- Autonomic vs. Somatic: involuntary vs. voluntary control
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