Sciatic nerve vs Vagus nerve
| Property | Sciatic nerve | Vagus nerve |
|---|---|---|
| Latin Name | Nervus ischiadicus | Nervus vagus |
| Type | Nerve | Nerve |
| Body System | Nervous | Nervous |
| Body Region | Hip | Neck |
| Function | The largest and longest nerve in the body, providing motor innervation to the posterior thigh and all muscles below the knee. Provides sensory innervation to the lateral leg, foot, and … | The longest cranial nerve (CN X), providing parasympathetic innervation to most thoracic and abdominal viscera. Controls heart rate, peristalsis, sweating, speech, and various reflex actions including coughing, swallowing, and the … |
| Clinical Significance | Sciatica (sciatic nerve irritation, often from disc herniation) causes radiating pain down the posterior leg. Piriformis syndrome compresses the nerve in the buttock. Improper gluteal injections can damage the nerve. … | Vagus nerve stimulation is used to treat drug-resistant epilepsy and depression. Vagal tone affects heart rate variability. Vagotomy was historically used to treat peptic ulcers. Recurrent laryngeal nerve injury during … |
| FMA ID | 19034 | 5731 |
Full structure pages
Sciatic nerve
Nervus ischiadicus
The largest and longest nerve in the body, the sciatic nerve supplies motor innervation to the posterior thigh and every muscle below the knee, and sensation to the lateral leg, the foot, and part of …
Vagus nerve
Nervus vagus
The longest cranial nerve, the vagus nerve (CN X) provides parasympathetic innervation to most of the thoracic and abdominal viscera, influencing heart rate, peristalsis, sweating, and speech, as well as reflexes such as coughing, swallowing, …