From Wikipedia, the free encyclopedia
The piriformis nerve , also known as the nerve to piriformis , is the peripheral nerve that provides motor innervation to the
piriformis muscle .
Structure
Origin
The nerve to piriformis is a branch of the
sacral plexus .
[1]
[2] It (typically
[3] ) arises from the posterior divisions
[4] /branches
[3] of anterior rami of S1 and S2.
[1]
[2]
[3]
[5]
Course
It enters the anterior surface of the
piriformis muscle .
[3]
[6]
Variation
Origin
It may sometimes arise from the anterior ramus of S2 only.
[3]
Number
It may be doubled. An additional branch may arise from the
superior gluteal nerve .
[3]
Distribution
The piriformis nerve
innervates the
piriformis muscle .
[1]
See also
References
This article incorporates text in the
public domain from
page 957 of the 20th edition of
Gray's Anatomy (1918)
^
a
b
c Pan, Jason; Vasudevan, John (2018-01-01), Freedman, Mitchell K.; Gehret, Jeffrey A.; Young, George W.; Kamen, Leonard B. (eds.),
"Chapter 24 - Piriformis Syndrome: A Review of the Evidence and Proposed New Criteria for Diagnosis" , Challenging Neuropathic Pain Syndromes , Elsevier, pp. 205–215,
ISBN
978-0-323-48566-1 , retrieved 2021-02-03
^
a
b Khan, Dost; Nelson, Ariana (2018). "67 - Piriformis Syndrome".
Essentials of Pain Medicine .
Elsevier . pp. 613–618.
doi :
10.1016/B978-0-323-40196-8.00067-X .
ISBN
978-0-323-40196-8 .
^
a
b
c
d
e
f Apaydin, Nihal (2015).
"Chapter 47 - Variations of the Lumbar and Sacral Plexuses and Their Branches" . Nerves and Nerve Injuries . Vol. 1: History, Embryology, Anatomy, Imaging, and Diagnostics.
Academic Press . p. 634.
doi :
10.1016/B978-0-12-410390-0.00049-4 .
ISBN
978-0-12-410390-0 .
^ Mirjalili, S. Ali (2015-01-01), Tubbs, R. Shane; Rizk, Elias; Shoja, Mohammadali M.; Loukas, Marios (eds.),
"Chapter 46 - Anatomy of the Sacral Plexus L4-S4" , Nerves and Nerve Injuries , San Diego: Academic Press, pp. 619–626,
doi :
10.1016/b978-0-12-410390-0.00048-2 ,
ISBN
978-0-12-410390-0 , retrieved 2021-02-28
^ Mirjalili, S. Ali (2015-01-01), Tubbs, R. Shane; Rizk, Elias; Shoja, Mohammadali M.; Loukas, Marios (eds.),
"Chapter 46 - Anatomy of the Sacral Plexus L4-S4" , Nerves and Nerve Injuries , San Diego: Academic Press, pp. 619–626,
doi :
10.1016/b978-0-12-410390-0.00048-2 ,
ISBN
978-0-12-410390-0 , retrieved 2021-02-28
^ Mirjalili, S. Ali (2015-01-01), Tubbs, R. Shane; Rizk, Elias; Shoja, Mohammadali M.; Loukas, Marios (eds.),
"Chapter 46 - Anatomy of the Sacral Plexus L4-S4" , Nerves and Nerve Injuries , San Diego: Academic Press, pp. 619–626,
doi :
10.1016/b978-0-12-410390-0.00048-2 ,
ISBN
978-0-12-410390-0 , retrieved 2021-02-28
홍재기