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inguinal triangle

{{Short description|Region of the abdominal wall in humans}}

{{Infobox anatomy

| Name = Inguinal triangle

| Latin = trigonum inguinale

| Image = Inguinal triangle.png

| Caption = Internal (from posterior to anterior) view of right inguinal area of the male pelvis.

Inguinal triangle is labeled in green. The three surrounding structures:
inferior epigastric vessels: Run from upper left to center.
inguinal ligament: Runs from upper right to bottom left.
rectus abdominis muscle: Runs from upper left to bottom left, labeled rectus at upper left.

| Image2 = Inguinal triangle, external view.png

| Caption2 = External view.

Inguinal triangle is labeled in green. Borders:
inferior epigastric artery and vein: labeled at center left, and run from upper right to bottom center.
inguinal ligament: not labeled on diagram, but runs a similar path to the inguinal aponeurotic falx, labeled at bottom.
rectus abdominis muscle: runs from upper left to bottom left.

| Precursor =

| System =

| Artery =

| Vein =

| Nerve =

| Lymph =

}}

In human anatomy, the inguinal triangle is a region of the abdominal wall. It is also known by the eponym Hesselbach's triangle, after Franz Kaspar Hesselbach.

Structure

It is defined by the following structures:

  • Medial border: Lateral margin of the rectus sheath.{{cite book |author=Courtney M. Townsend Jr., MD, R. Daniel Beauchamp, MD, B. Mark Evers, MD and Kenneth L. Mattox, MD |title= Sabiston Textbook of Surgery |edition= 18th |date= 2008 |publisher= Elsevier |isbn= 978-1-4160-5233-3 |chapter= Ch.43}}{{Citation|last=Cureton|first=Elizabeth L.|title=Chapter 55 - Inguinal Hernia|date=2009-01-01|url=http://www.sciencedirect.com/science/article/pii/B9780323057110000550|work=Abernathy's Surgical Secrets (Sixth Edition)|pages=269–276|editor-last=Harken|editor-first=Alden H.|place=Philadelphia|publisher=Mosby|language=en|isbn=978-0-323-05711-0|access-date=2021-01-23|last2=Ereso|first2=Alexander Q.|last3=Victorino|first3=Gregory P.|editor2-last=Moore|editor2-first=Ernest E.}}
  • Superolateral border: Inferior epigastric vessels.
  • Inferior border: Inguinal ligament.

This can be remembered by the mnemonic RIP (Rectus sheath (medial), Inferior epigastric artery (lateral), Poupart's ligament (inguinal ligament, inferior).

Clinical significance

The inguinal triangle contains a depression referred to as the medial inguinal fossa, through which direct inguinal hernias protrude through the abdominal wall.MedNote. Red Anatomy. URL: [http://www.mednote.co.kr/Rednote/RedAnatom.htm http://www.mednote.co.kr/Rednote/RedAnatom.htm] {{Webarchive|url=https://web.archive.org/web/20060423183756/http://mednote.co.kr/Rednote/RedAnatom.htm |date=2006-04-23 }}. Accessed December 15, 2005.

History

The inguinal triangle is also known as Hesselbach's triangle, after Franz Kaspar Hesselbach.

See also

References

{{Muscles of trunk}}

{{Peritoneum}}

{{Authority control}}

Category:Abdomen

Category:Medical mnemonics