somatic nervous system

PNS - somatic

Part of peripheral nervous system that includes the somatic parts of the cranial and spinal nerves and their ganglia and the peripheral sensory receptors.

Tipo Nerve
Sistema corporal Nervous
Nome latino PNS - somatic
FMA ID 9904

Perguntas frequentes

What is the somatic nervous system responsible for?
The somatic nervous system controls voluntary skeletal muscle movement and conveys conscious sensory information from the body surface, muscles, and joints to the CNS. It includes the cranial and spinal nerves innervating skin and skeletal muscles.
How does the somatic nervous system differ from the autonomic nervous system?
The somatic nervous system controls voluntary, conscious actions and conveys conscious sensations. The autonomic nervous system controls involuntary functions like heart rate and digestion. Somatic motor pathways use a single neuron to reach skeletal muscle, while autonomic pathways use two-neuron chains.
What is the role of sensory receptors in the somatic nervous system?
Peripheral sensory receptors in the somatic nervous system detect mechanical, thermal, and nociceptive (pain) stimuli from the skin, muscles, and joints. These signals are transmitted via afferent neurons through spinal or cranial nerves to the brain for conscious processing.

Estruturas relacionadas

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.