Corpus: Sacral nerve
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Synonym: sacral nerve
English:
Definition[Bearbeiten]
The term sacral nerves or sacral nerves refers to the 5 paired spinal nerves that originate from the sacral section of the spinal cord, the sacral cord, and emerge from the coccyx (os sacrum). The corresponding spinal cord segments are numbered S1 to S5.
Anatomy[Bearbeiten]
The sacral nerves branch into anterior and posterior branches. They leave the os sacrum through the foramina sacralia anteriora and posteriora.
The anterior or ventral branches of segments S1 to S4 together with fibres from L5 form the sacral plexus.