Inguinal triangle

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Inguinal triangle
Inguinal triangle.png
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.
Inguinal triangle, external view.png
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.
Details
Identifiers
Latin trigonum inguinale
TA98 A10.1.02.433
TA2 3795
FMA 256506
Anatomical terminology

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.

Contents

Structure

It is defined by the following structures:

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. [3]

History

The inguinal triangle is also known as Hesselbach's triangle, after Franz Kaspar Hesselbach. [2]

See also

Related Research Articles

<span class="mw-page-title-main">Inguinal canal</span> Human abdominal anatomy

The inguinal canals are the two passages in the anterior abdominal wall of humans and animals which in males convey the spermatic cords and in females the round ligament of the uterus. The inguinal canals are larger and more prominent in males. There is one inguinal canal on each side of the midline.

<span class="mw-page-title-main">Inguinal hernia</span> Medical condition in which contents of the abdominal cavity protrude through the inguinal canal

An inguinal hernia is a hernia (protrusion) of abdominal-cavity contents through the inguinal canal. Symptoms, which may include pain or discomfort especially with or following coughing, exercise, or bowel movements, are absent in about a third of patients. Symptoms often get worse throughout the day and improve when lying down. A bulging area may occur that becomes larger when bearing down. Inguinal hernias occur more often on the right than left side. The main concern is strangulation, where the blood supply to part of the intestine is blocked. This usually produces severe pain and tenderness of the area.

<span class="mw-page-title-main">Rectus abdominis muscle</span> Paired straight muscle

The rectus abdominis muscle, also known as the "abdominal muscle" or simply the "abs", is a paired straight muscle. It is a paired muscle, separated by a midline band of connective tissue called the linea alba. It extends from the pubic symphysis, pubic crest and pubic tubercle inferiorly, to the xiphoid process and costal cartilages of ribs V to VII superiorly. The proximal attachments are the pubic crest and the pubic symphysis. It attaches distally at the costal cartilages of ribs 5-7 and the xiphoid process of the sternum.

<span class="mw-page-title-main">Inguinal lymph nodes</span>

Inguinal lymph nodes are lymph nodes in the human groin. Located in the femoral triangle of the inguinal region, they are grouped into superficial and deep lymph nodes. The superficial have three divisions: the superomedial, superolateral, and inferior superficial.

<span class="mw-page-title-main">Inguinal ligament</span> Band running from the pubic tubercle to the anterior superior iliac spine

The inguinal ligament, also known as Poupart's ligament or groin ligament, is a band running from the pubic tubercle to the anterior superior iliac spine. It forms the base of the inguinal canal through which an indirect inguinal hernia may develop.

<span class="mw-page-title-main">Abdominal external oblique muscle</span> Skeletal muscle in the abdomen

The abdominal external oblique muscle is the largest and outermost of the three flat abdominal muscles of the lateral anterior abdomen.

<span class="mw-page-title-main">Inferior epigastric artery</span> Blood vessel

In human anatomy, inferior epigastric artery refers to the artery that arises from the external iliac artery. It anastomoses with the superior epigastric artery. Along its course, it is accompanied by a similarly named vein, the inferior epigastric vein. These epigastric vessels form the lateral border of Hesselbach's triangle, which outlines the area through which direct inguinal hernias protrude.

<span class="mw-page-title-main">Inferior epigastric vein</span> Large blood vessel

In human anatomy, inferior epigastric vein refers to the vein that drains into the external iliac vein and anastomoses from the superior epigastric vein. Along its course, it is accompanied by a similarly named artery, the inferior epigastric artery.

<span class="mw-page-title-main">Femoral nerve</span> Long nerve down the thigh and inner leg

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<span class="mw-page-title-main">Interfoveolar ligament</span> Band of fibers in front of the inferior epigastric artery in the abdomen

Lateral to the conjoint tendon, previously known as the inguinal aponeurotic falx, there is a ligamentous band originating from the lower margin of the transversalis fascia and extending down in front of the inferior epigastric artery to the superior ramus of the pubis; it is termed the interfoveolar ligament of Hesselbach and sometimes contains a few muscular fibers.

<span class="mw-page-title-main">Conjoint tendon</span> Medial part of the posterior wall of the inguinal canal

The conjoint tendon is a sheath of connective tissue formed from the lower part of the common aponeurosis of the abdominal internal oblique muscle and the transversus abdominis muscle, joining the muscle to the pelvis. It forms the medial part of the posterior wall of the inguinal canal.

In human anatomy, the inguinal region refers to either the groin or the lower lateral regions of the abdomen. It may also refer to:

<span class="mw-page-title-main">Pubic tubercle</span> Bone

The pubic tubercle is a prominent tubercle on the superior ramus of the pubis bone of the pelvis.

<span class="mw-page-title-main">Femoral canal</span> Anatomy of the leg

The femoral canal is the medial compartment of the three compartments of the femoral sheath. It is conical in shape. The femoral canal contains lymphatic vessels, and adipose and loose connective tissue, as well as - sometimes - a deep inguinal lymph node. The function of the femoral canal is to accommodate the distension of the femoral vein when venous return from the leg is increased or temporarily restricted.

<span class="mw-page-title-main">Lateral umbilical fold</span>

The lateral umbilical fold overlies the inferior epigastric artery and its accompanying veins. Unlike the median and medial umbilical folds, the contents of the lateral umbilical fold remain functional after birth. It originates just medial to the deep inguinal ring to the arcuate line on the posterior surface of the anterior abdominal wall.

<span class="mw-page-title-main">Femoral sheath</span> Anatomical structure of the upper thigh

The femoral sheath is a funnel-shaped downward extension of abdominal fascia within which the femoral artery and femoral vein pass between the abdomen and the thigh. The femoral sheath is subdivided by two vertical partitions to form three compartments ; the medial compartment is known as the femoral canal and contains lymphatic vessels and a lymph node, whereas the intermediate canal and the lateral canal accommodate the femoral vein and the femoral artery (respectively). Some neurovascular structures perforate the femoral sheath. Topographically, the femoral sheath is contained within in the femoral triangle.

<span class="mw-page-title-main">Arcuate line of rectus sheath</span>

The arcuate line of rectus sheath, the linea semicircularis, the arcuate line, or the semicircular line of Douglas, is a horizontal line that demarcates the lower limit of the posterior layer of the rectus sheath. It is commonly known simply as the arcuate line. It is also where the inferior epigastric artery and vein perforate the rectus abdominis.

<span class="mw-page-title-main">Medial umbilical ligament</span>

The medial umbilical ligament is a paired structure found in human anatomy. It is on the deep surface of the anterior abdominal wall, and is covered by the medial umbilical folds. It is different from the median umbilical ligament, a structure that represents the remnant of the embryonic urachus.

<span class="mw-page-title-main">Outline of human anatomy</span> Overview of and topical guide to human anatomy

The following outline is provided as an overview of and topical guide to human anatomy:

In surgery, a surgical incision is a cut made through the skin and soft tissue to facilitate an operation or procedure. Often, multiple incisions are possible for an operation. In general, a surgical incision is made as small and unobtrusive as possible to facilitate safe and timely operating conditions.

References

  1. 1 2 3 Courtney M. Townsend Jr., MD, R. Daniel Beauchamp, MD, B. Mark Evers, MD and Kenneth L. Mattox, MD (2008). "Ch.43". Sabiston Textbook of Surgery (18th ed.). Elsevier. ISBN   978-1-4160-5233-3.{{cite book}}: CS1 maint: multiple names: authors list (link)
  2. 1 2 3 4 Cureton, Elizabeth L.; Ereso, Alexander Q.; Victorino, Gregory P. (2009-01-01), Harken, Alden H.; Moore, Ernest E. (eds.), "Chapter 55 - Inguinal Hernia", Abernathy's Surgical Secrets (Sixth Edition), Philadelphia: Mosby, pp. 269–276, ISBN   978-0-323-05711-0 , retrieved 2021-01-23
  3. MedNote. Red Anatomy. URL: http://www.mednote.co.kr/Rednote/RedAnatom.htm Archived 2006-04-23 at the Wayback Machine . Accessed December 15, 2005.