Inguinal canal (canalis inguinalis) is an elongated slot which is located in the lower abdominal wall in the thickness of the abdominal muscles. Channel length of 4-4.5 cm channel direction is oblique to the bottom, to the middle of the cavity. Wall of the inguinal canal inguinal ligament form a trough (bottom panel), and the lower beams of the internal oblique and transverse abdominal muscles (upper panel), external oblique muscle aponeurosis abdomen (anterior wall) and the transverse fascia abdomen (rear panel).
|In Fig. 110.
Inguinal canal and abdominal muscles
1 - external oblique muscle of abdomen;
2 - transverse muscle of abdomen;
3 - transverse fascia;
4 - the internal oblique muscle of abdomen;
5 - the rectus abdominis;
6 - aponeurosis external oblique abdominal muscles;
7 - deep inguinal ring;
8 - pyramidal muscle of abdomen;
9 - conjoined tendon;
10 - muscle lifting testicle;
11 - lateral leg inguinal ligament;
12 - superficial inguinal ring;
13 - foot medial inguinal ligament
The canal has two openings: the input, which is called the deep inguinal ring (anulus inguinalis profundus), and output - superficial inguinal ring (anulus inguinalis superficialis).
Superficial inguinal ring is located above the pubic bone in the external oblique muscle aponeurosis abdomen and looks like an oval hole on top of limited medial inguinal ligament leg (crus mediale), and bottom - of the lateral leg (crus laterale). In this opening the inguinal canal in males is the spermatic cord (funiculus spermaticus), women - round ligament of the uterus (lig. teres uteri).
The deep inguinal ring is located in the transverse fascia and the abdomen is not a clear opening and a funnel-shaped groove, medial ligament limited mezhyamochkovoy (lig. interfoveolare). Medially from the fiber bundles mezhyamochkovoy aponeurosis of the transverse abdominal muscles, curving and weaving are attached to the tubercle and the crest of the pubic bone, forming the connecting tendon, called the conjoined tendon (falx inguinalis). In the deep inguinal ring are lower epigastric vein and artery.
a., aa. — arteria, arteriae (artery, the artery)
lig., ligg. — ligamentum, ligamenta (ligament, the ligaments)
m., mm. — musculus, musculi (muscle, the muscle)
n., nn. — nervus, nervi (nerve, the nerve)
r., rr. — ramus, rami (branch)
s. — seu (or)
v., vv. — vena, venae (vienna)