Boundaries
A first-order approximation is to visualize the canal as a cylinder,
To help define the boundaries, the canal is often further approximated as a box with six sides. Not including the two rings, the remaining four sides are usually called the "anterior wall", "posterior wall", "roof", and "floor". These consist of the following:
| superior wall (roof): transversus abdominis internal oblique medial crus of external oblique muscle |
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| anterior wall: aponeurosis of external oblique fleshy part of internal oblique (lateral third of canal only) superficial inguinal ring (medial third of canal only) |
(inguinal canal) | posterior wall: transversalis fascia conjoint tendon (Inguinal falx,reflected part of inguinal ligament, medial third of canal only) deep inguinal ring (lateral third of canal only) |
| inferior wall (floor): inguinal ligament lacunar ligament (medial third of canal only) iliopubic tract (lateral third of canal only) |
Read more about this topic: Inguinal Canal
Famous quotes containing the word boundaries:
“We must be generously willing to leave for a time the narrow boundaries in which our individual lives are passed ... In this fresh, breezy atmosphere ... we will be surprised to find that many of our familiar old conventional truths look very queer indeed in some of the sudden side lights thrown upon them.”
—Bertha Honore Potter Palmer (1849–1918)
“Not too many years ago, a child’s experience was limited by how far he or she could ride a bicycle or by the physical boundaries that parents set. Today ... the real boundaries of a child’s life are set more by the number of available cable channels and videotapes, by the simulated reality of videogames, by the number of megabytes of memory in the home computer. Now kids can go anywhere, as long as they stay inside the electronic bubble.”
—Richard Louv (20th century)
“We love to overlook the boundaries which we do not wish to pass.”
—Samuel Johnson (1709–1784)