Nervous system
/nɝvʌs/ /sɪstʌm/
1. [noun] sciatic nerve: a pair of nerves, the largest in the body, that originate in the sacral plexus of the lower back and extend down the buttocks to the back of the knees, where they divide into other nerves: the sciatic nerve and its branches innervate large areas of the pelvis, leg, and foot
Frequently Asked Questions
When going about daily foot movements, why might you experience a mild tingling sensation extending up the leg?
This sensation occurs because a key nerve that originates in the lower back sends signals to the foot. Its role in communicating touch and movement can cause a tingling feeling during everyday activities like walking or climbing stairs.
How does understanding the Greek roots of 'sciatic' help in visualizing nerve pathways to the foot?
The term 'sciatic' derives from Greek words referring to the hip, linking it to the leg and foot. This etymology aids in remembering that this major nerve is crucial for transmitting signals to the foot during routine movements.