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The superficial inguinal ring (subcutaneous inguinal ring or external inguinal ring) is an anatomical structure in the anterior wall of the mammalian abdomen. It is a triangular opening that forms the exit of the inguinal canal, which houses the ilioinguinal nerve , the genital branch of the genitofemoral nerve , and the spermatic cord (in men ...
The superficial inguinal ring is bounded below by the crest of the pubis; on either side by the margins of the opening in the aponeurosis, which are called the crura of the ring; and above, by a series of curved intercrural fibers.
The aponeurosis of the abdominal external oblique muscle is a thin but strong membranous structure, the fibers of which are directed downward and medially.. It is joined with that of the opposite muscle along the middle line, and covers the whole of the front of the abdomen; above, it is covered by and gives origin to the lower fibers of the pectoralis major; below, its fibers are closely ...
It then pierces the internal oblique muscle, distributing filaments to it, and then accompanies the spermatic cord (in males) or the round ligament of uterus (in females) through the superficial inguinal ring. Its fibres are then distributed to the skin of the upper and medial part of the thigh, and to the following locations in the male and ...
As they pass across the subcutaneous inguinal ring, they are connected together by delicate fibrous tissue, forming a fascia, called the intercrural fascia.. This intercrural fascia is continued down as a tubular prolongation around the spermatic cord and testis, and encloses them in a sheath; hence it is also called the external spermatic fascia.
These parts of the superficial fascia are most prominent in the lower aspect of the abdominal wall below the level of the umbilicus. Camper's fascia is continuous inferiorly with the superficial fascia of the thigh. Medial and inferior to the pubic tubercle, in the male, Scarpa's fascia changes as it continues over the scrotum and forms dartos ...
Inguinal ring, the two openings of the inguinal canal Deep inguinal ring, the entrance to the inguinal canal; Superficial inguinal ring, a triangular opening that forms the exit of the inguinal canal; Inguinal triangle, a region of the abdominal wall, also known by the eponym Hesselbach's triangle
It is named for Italian anatomist Antonio Scarpa. [2] His description of the membranous superficial fascia is vague in his 1809 hernia monograph. [3] Life-size illustrations included by Scarpa do not identify the layer even though some show all the other anatomical layers of the abdominal wall in the inguinal region.