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Gastrointestinal ` gastrointestinal—anatomy Gastrointestinal ` gastrointestinal—anatomy seCtion iii 369

Inguinal canal
Abdominal wall
Deep (internal)
inguinal ring Inferior epigastric site of protrusion of
direct hernia
site of protrusion of vessels
Parietal peritoneum indirect hernia Medial umbilical ligament
Extraperitoneal tissue Median umbilical ligament
Transversalis fascia Rectus abdominis muscle
Pyramidalis muscle
Transversus abdominis muscle
Conjoint tendon
Linea alba
Internal oblique muscle
Spermatic cord (ICE tie)

Aponeurosis of external
oblique muscle
Superficial (external)
Inguinal ligament inguinal ring

Internal spermatic fascia Cremasteric muscle and fascia External spermatic fascia
(transversalis fascia) (internal oblique) (external oblique)

Abdominal wall
Anterior superior iliac spine
Posterior rectus sheath Transversus abdominis muscle
Transversalis fascia
Evagination of transversalis fascia Inferior epigastric vessels
Arcuate line Internal (deep) inguinal ring
Ductus (vas) deferens Rectus abdominis
Inferior epigastric vessels Genital branch of genitofemoral Inguinal ligament
Rectus abdominis nerve Inguinal (Hesselbach) triangle
Internal spermatic vessels
Inguinal ligament
Iliacus muscle
Inguinal (Hesselbach) triangle Femoral nerve
External iliac vessels
Femoral vessels
Pubic tubercle Femoral triangle
Lacunar ligament
Posterior (internal) abdominal wall Anterior (external) abdominal wall

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