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The mammalian nervous system is divided into 2 sub-sections:
i) the central nervous system and
ii)peripheral nervous system.
The CNS is divided into brain and spinal cord. A series of protective bones surround the CNS. The brain is surrounded by the skull, and the spinal cord is surrounded by a series of cervical, thoracic and lumbar vertebrae and ligaments. The vertebrae form a functional canal or conduit through which the spinal cord passes.
The peripheral nervous system is divided into motor (efferent) and sensory (afferent) sub-systems.
Within the motor peripheral nerves are somatic motor neurons which carry action potential commands from the CNS to synaptic junctions at skeletal muscles; and the autonomic nervous system’s motor neurons which carry action potential through an intermediate synapse to synapses at smooth muscles, cardiac muscle and some exocrine glands
marto answered the question on April 16, 2019 at 07:20
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