The Peripheral Nervous System | The Nervous System | Unit 7. Animal Structure and Function
Chapter: The Peripheral Nervous System
Collection: The Nervous System
Unit 7. Animal Structure and Function
Book: Biology
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The peripheral nervous system contains both the autonomic and sensory-somatic nervous systems. The autonomic nervous system provides unconscious control over visceral functions and has two divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system is activated in stressful situations to prepare the animal for a 'fight or flight' response. The parasympathetic nervous system is active during restful periods. The sensory-somatic nervous system is made of cranial and spinal nerves that transmit sensory information from skin and muscle to the CNS and motor commands from the CNS to the muscles.
00:00 The Peripheral Nervous System
00:59 Autonomic nervous system
01:56 Sympathetic nervous system
04:17 Parasympathetic nervous system
05:38 Sensory-somatic nervous system
08:32 Section summary
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