Inguinal Canal Flashcards
Is an oblique passage through the inferior region of the anterior abdominal wall.
Inguinal canal.
How many walls does the inguinal canal have?
4
Formed by the external oblique aponeurosis.
Anterior wall.
Formed by the conjoint tendon of the internal oblique and the transverse abdominis muscles and the transversalis fascia.
Posterior wall.
Formed by arching fibers of the internal oblique and the transverse abdominis muscles.
Roof.
The medial half of the inguinal ligament forms the inferior wall of the inguinal canal.
Floor.
Formed by an opening in the transversalis fascia. Located superior to the inguinal ligament, lateral to the inferior epigastric vessels, and halfway between the pubic bone and the anterior superior iliac spine.
Deep inguinal ring.
Formed by an opening in the external oblique aponeurosis superior and medial to the pubic tubercle.
Superficial inguinal ring.
What are the 4 contents of the male inguinal canal?
Genital branch of the genitofemoral nerve (L1-L2).
Ductus deferens.
Testicular artery and vein.
Autonomic nerves.
What is inguinal hernia?
When a loop of small intestine bulges through the abdominal wall that holds it.
What is the difference between a direct inguinal hernia and an indirect inguinal hernia?
A direct inguinal hernia is when the small intestine protrudes into the canal medal of the inferior epigastric vessels. An indirect inguinal hernia is when the small intestine protrudes into the canal lateral of the inferior epigastric vessels.
What are the names of the 3 umbilical folds?
Median, Medial, and Lateral folds
Unpaired fold in the mid-sagittal plane that contains the fibrous remains of the urachus, which course from the apex of the bladder to the umbilicus.
Median umbilical fold.
Paired folds that contain the obliterated umbilical arteries, which course from the internal iliac artery to the umbilicus.
Medial umbilical folds.
Paired folds that contain the inferior epigastric arteries and veins, which course from the external iliac arteries and veins respectively to the arcuate line.
Lateral umbilical folds.