Definition of Sciatic nerve

1. Noun. Arises from the sacral plexus and passes about halfway down the thigh where it divides into the common peroneal and tibial nerves.

Exact synonyms: Nervus Ischiadicus
Generic synonyms: Nerve, Nervus
Group relationships: Leg

Definition of Sciatic nerve

1. Noun. (neuroanatomy) A large nerve that starts in the lower back and runs through the buttock and down the lower limb. ¹

¹ Source:

Medical Definition of Sciatic nerve

1. A nerve which originates in the lumbar and sacral spinal cord (l4 to s3) and supplies motor and sensory innervation to the lower extremity. The sciatic nerve, which is the main continuation of the sacral plexus, is the largest nerve in the body. It has two major branches, the tibial nerve and the peroneal nerve. (12 Dec 1998)

Sciatic Nerve Pictures

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Lexicographical Neighbors of Sciatic Nerve

sciatic foramen
sciatic hernia
sciatic nerve (current term)
sciatic nerves
sciatic neuralgia
sciatic neuritis
sciatic plexus
sciatic scoliosis
science center

Literary usage of Sciatic nerve

Below you will find example usage of this term as found in modern and/or classical literature:

1. Anatomy, Descriptive and Surgical by Henry Gray (1901)
"The Small sciatic nerve (Fig. 423) supplies the integument of the perineum and back part of ... The branches of the small sciatic nerve are all cutaneous, ..."

2. Quain's Elements of Anatomy by Jones Quain, William Sharpey, Allen Thomson, John G. Cleland (1867)
"clitoris, labia, and other corresponding parts in the female. It communicates with the inferior pudendal branch of the email sciatic nerve. ..."

3. Quain's Elements of Anatomy by Jones Quain, Edward Albert Schäfer, Johnson Symington, Thomas Hastie Bryce (1909)
"In its course downwards, the sciatic nerve supplies offsets to the hamstring ... The branches of the sciatic nerve to the muscles arising from the ischial ..."

4. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1831)
"Dr. M. tried a number of experiments upon dogs, from which it appeared that the section of the sciatic nerve, two-thirds down the thigh, produces paralysis, ..."

5. Anatomy, Descriptive and Applied by Henry Gray (1913)
"The Sciatic (n. ischiadicus; great sciatic nerve) (Fig. 821) supplies nearly the whole of the skin of the leg, the muscles of the back of the thigh, ..."

6. American Journal of Physiology by American Physiological Society (1887- ). (1913)
"A few experiments were performed similar to those already described, but with the whole sciatic nerve (distal to the branching of the hamstring) as one ..."

7. Cunningham's Manual of Practical Anatomy by Daniel John Cunningham, Arthur Robinson (1914)
"The sciatic nerve, the largest nerve in the body, comes from the sacral plexus, ... Covered by the glutaeus maximus, the sciatic nerve traverses the gluteal ..."

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