使用者:Heihaheihaha/生殖股神經
| 生殖股神經 | |
|---|---|
 Plan of lumbar plexus. (Genitofemoral nerve visible at upper left.) | |
 The lumbar plexus and its branches. (Genitofemoral nerve visible at upper left.) | |
| 基本資訊 | |
| 來源 | Lumbar plexus |
| 走向 | Lumboinguinal, genital branch |
| 支配 | Cremaster muscle
Anterior scrotum in males Mons pubis in females |
| 標識字符 | |
| 拉丁文 | nervus genitofemoralis nervus genitalifemoralis |
| 《神經解剖學術語》 [在維基數據上編輯] | |
生殖股神經（genitofemoral nerve）是來自腰叢（L1-L2）前支的一混合神經，分為生殖支和股支，為大腿前上部以及男性陰囊前部皮膚和女性大陰唇前部的皮膚提供感覺神經支配。通過生殖支為提睾肌提供運動神經支配。
結構
[編輯]來源及走行
[編輯]生殖股神經是腰叢的一個分支。[1]它源自腰（脊）神經L1-L2的前支，在腰大肌內匯合後向下走行，穿過腰大肌並從其前面穿出。[2]
該神經分為兩支，即生殖支和股支[1]，這兩支隨後分別向下和向內側進入腹股溝管和股管。
分支
[編輯]生殖支
[編輯]生殖支在腰大肌表面向下延續，然後經腹股溝管深環口進入腹股溝管。[1]在男性中，生殖支支配提睾肌並提供陰囊前2/3皮膚感覺[3]。在女性中，生殖支伴隨子宮圓韌帶終止，支配大陰唇前部的皮膚感覺。[1]
股支
[編輯]The femoral branch passes underneath the inguinal ligament, travelling through the lateral muscular compartment of the femoral sheath where it innervates skin of the upper leg. Passing through the cribriform fascia of the saphenous opening of the fascia lata of the thigh, it then supplies the skin of the upper, anterior and medial side of thigh.[1]
變異
[編輯]![[icon]](/wiki/File:Wiki_letter_w_cropped.svg){kind=small} | 此章節需要擴充。 (2013年11月1日) |
The genitofemoral nerve typically pierces and passes through the psoas major muscle before bifurcating into a genital branch and a femoral branch midway along its anterior surface. In approximately 25% of cases, the genitofemoral nerve splits into these branches before it enters the psoas major or within the muscle belly of psoas major (with fibers of the psoas major separating the genital and femoral branches). Usually this variation causes the split to be occur earlier in the genitofemoral nerve, at the upper rather than mid-portion of the anterior surface of the psoas major.[4]
胚胎發育
[編輯] | 此章節需要擴充。 (2013年11月1日) |
The genitofemoral nerve is formed in the midsection of the psoas muscle by the union of branches from the anterior rami of L1 and L2 nerve roots
功能
[編輯]The genitofemoral nerve is responsible for both the sensory (femoral branch) and motor portions (genital branch) of the cremasteric reflex, which describes contraction of the cremasteric muscle when the skin of the superior medial part of the thigh is touched.[1] :262
其它圖像
[編輯]-
Deep and superficial dissection of the lumbar plexus. -
Genitofemoral nerve
另見
[編輯]本條目使用了部分解剖術語。
參考文獻
[編輯]- ^ 1.0 1.1 1.2 1.3 1.4 1.5 Drake, Richard L.; Vogl, Wayne; Tibbitts, Adam W.M. Mitchell; illustrations by Richard; Richardson, Paul. Gray's anatomy for students Pbk. Philadelphia: Elsevier/Churchill Livingstone. 2005: 340–343. ISBN 978-0-443-06612-2.
- ^ Standring, Susan. Gray's Anatomy: The Anatomical Basis of Clinical Practice 42nd. New York. 2020: 1148. ISBN 978-0-7020-7707-4. OCLC 1201341621.
- ^ 張紹祥，張雅芳主編. 局部解剖学 2015年5月第3版第1次印刷. 北京: 人民衛生出版社. 2015: 269. ISBN 978-7-117-20395-1.
- ^ Anloague, Phillip; Huijbregts, Peter. Anatomical Variations of the Lumbar Plexus: A Descriptive Anatomy Study with Proposed Clinical Implications. Journal of Manual and Manipulative Therapy. 2009, 17 (4): e107–14. PMC 2813498
. PMID 20140146. doi:10.1179/106698109791352201.
外部連結
[編輯]- 人體解剖學在線（Human Anatomy Online）網站上的相關圖片：36:07-0305 - "Inguinal Region, Scrotum and Testes: Layers of the spermatic cord"
- Anatomy figure: 40:07-13 at Human Anatomy Online, SUNY Downstate Medical Center - "Muscles and nerves of the posterior abdominal wall."
- （英文）posteriorabdomen 在韋斯利諾曼的解剖課上（喬治城大學） (posteriorabdmus&nerves)
