Pubic tubercle
{{Use American English|date = January 2019}}
{{Short description|Rounded outgrowth on the pubic bone}}
{{Use mdy dates|date = January 2019}}
{{Infobox bone
| Name = Pubic tubercle
| Latin = tuberculum pubicum ossis pubis
| Image = Gray321.png
| Caption = Pubic symphysis exposed by a coronal section. (Pubic tubercle labeled at upper left.)
| Image2 = Skeletal pelvis-pubis.svg
| Caption2 = Pelvis. Pubic tubercle is 4d.
}}
The pubic tubercle is a prominent tubercle on the superior ramus of the pubis bone of the pelvis.
Structure
The pubic tubercle is a prominent forward-projecting tubercle on the upper border of the medial portion of the superior ramus of the pubis bone. The inguinal ligament attaches to it. Part of the abdominal external oblique muscle inserts onto it.{{Citation|last=Jacob|first=S.|title=Chapter 4 - Abdomen|date=2008-01-01|url=http://www.sciencedirect.com/science/article/pii/B9780443103735500075|work=Human Anatomy|pages=71–123|editor-last=Jacob|editor-first=S.|publisher=Churchill Livingstone|language=en|doi=10.1016/b978-0-443-10373-5.50007-5|isbn=978-0-443-10373-5|access-date=2021-01-22|url-access=subscription}} The inferior epigastric artery passes between the pubic tubercle and the anterior superior iliac spine.{{Citation|last=Garcia-Tsao|first=Guadalupe|title=15 - Ascites and Hyponatremia|date=2018-01-01|url=http://www.sciencedirect.com/science/article/pii/B978032337591700015X|work=Zakim and Boyer's Hepatology (Seventh Edition)|pages=220–232.e4|editor-last=Sanyal|editor-first=Arun J.|place=Philadelphia|publisher=Elsevier|language=en|isbn=978-0-323-37591-7|access-date=2021-01-22|editor2-last=Boyer|editor2-first=Thomas D.|editor3-last=Lindor|editor3-first=Keith D.|editor4-last=Terrault|editor4-first=Norah A.}} The pubic spine is a rough ridge that extends from the pubic tubercle to the upper border of the pubic symphysis.
Clinical significance
The pubic tubercle may be palpated.{{Citation|last=Narchi|first=Patrick|title=Chapter 49 - Truncal Blocks|date=2008-01-01|url=http://www.sciencedirect.com/science/article/pii/B9780323041843500522|work=Raj's Practical Management of Pain (Fourth Edition)|pages=905–915|editor-last=Benzon|editor-first=Honorio T.|place=Philadelphia|publisher=Mosby|language=en|isbn=978-0-323-04184-3|access-date=2021-01-21|last2=Singelyn|first2=François|last3=Paqueron|first3=Xavier|editor2-last=Rathmell|editor2-first=James P.|editor3-last=Wu|editor3-first=Christopher L.|editor4-last=Turk|editor4-first=Dennis C.}} It serves as a landmark for local anaesthetic of the genital branch of the genitofemoral nerve, which lies slightly lateral to the pubic tubercle. This may also be used for the obturator nerve.{{Citation|last=Candido|first=Kenneth D.|title=Chapter 76 - Lumbar Plexus, Femoral, Lateral Femoral Cutaneous, Obturator, Saphenous, and Fascia Iliaca Blocks|date=2005-01-01|url=http://www.sciencedirect.com/science/article/pii/B9780443066511500800|work=Essentials of Pain Medicine and Regional Anesthesia (Second Edition)|pages=645–658|editor-last=Benzon|editor-first=Honorio T.|place=Philadelphia|publisher=Churchill Livingstone|language=en|isbn=978-0-443-06651-1|access-date=2021-01-22|last2=Benzon|first2=Honorio T.|editor2-last=Raja|editor2-first=Srinivasa N.|editor3-last=Molloy|editor3-first=Robert E.|editor4-last=Liu|editor4-first=Spencer S.}}
= Hernias =
The pubic tubercle is a useful landmark for identifying hernias.{{Citation|last=Jacob|first=S.|title=Chapter 6 - Lower limb|date=2008-01-01|url=http://www.sciencedirect.com/science/article/pii/B9780443103735500099|work=Human Anatomy|pages=135–179|editor-last=Jacob|editor-first=S.|publisher=Churchill Livingstone|language=en|doi=10.1016/b978-0-443-10373-5.50009-9|isbn=978-0-443-10373-5|access-date=2021-01-22|url-access=subscription}} An inguinal hernia will lie anteromedial to the pubic tubercle. A femoral hernia will lie inferolateral to the pubic tubercle.
References
{{Gray's}}
External links
- {{UMichAtlas|abdo_wall65}} - "The Coverings of the Inguinal Canal, External & Internal Oblique & Transversus Abdominis Removed"
- {{NormanAnatomy|pelvis}} ({{NormanAnatomyFig|pelvissuperior2}}, {{NormanAnatomyFig|pelvislateral}}, {{NormanAnatomyFig|pelvisinside}})
- [https://web.archive.org/web/20060322133004/http://www.nysora.com/techniques/genitofemoral_block/ Photo at nysora.com]
- [http://cai.md.chula.ac.th/lesson/hernia/hernia11.htm Photo of dissection at chula.ac.th]
- [https://web.archive.org/web/20061118084211/http://www.studentbmj.com/issues/03/09/education/318.php Article and diagram at studentbmj.com]
{{Pelvis}}
{{Portal bar|Anatomy}}
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