Biology / Unit 12 Bio 2861 short lesson, about 20 seconds
Sensory-Somatic Nervous System
Captions available
The idea
The sensory-somatic nervous system carries sensory information from skin and muscle to the nervous system and motor commands out, via twelve cranial and thirty-one spinal nerve pairs.
In practice
The olfactory nerve carries only sensory information, while the oculomotor nerve carries mostly motor commands to eye muscles.
Where people slip
Unlike the autonomic relay, sensory and motor neurons here use only one synapse to the central system.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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