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Questions and Answers
The deep inguinal ring is an oval opening in the fascia transversalis, lies about 0.5 in.(1.3 cm) above the inguinal ligament midway between the anterior superior iliac spine and the symphysis pubis. Related to it medially are the ______ vessels.
The deep inguinal ring is an oval opening in the fascia transversalis, lies about 0.5 in.(1.3 cm) above the inguinal ligament midway between the anterior superior iliac spine and the symphysis pubis. Related to it medially are the ______ vessels.
inferior epigastric
The margins of the superficial inguinal ring, sometimes called the crura, give attachment to the ______ fascia.
The margins of the superficial inguinal ring, sometimes called the crura, give attachment to the ______ fascia.
external spermatic
The margins of the deep inguinal ring give attachment to the internal spermatic fascia (or the internal covering of the round ligament of the uterus).The superficial inguinal ring is a triangular-shaped defect in the aponeurosis of the external oblique muscle and lies immediately above and medial to the ______.
The margins of the deep inguinal ring give attachment to the internal spermatic fascia (or the internal covering of the round ligament of the uterus).The superficial inguinal ring is a triangular-shaped defect in the aponeurosis of the external oblique muscle and lies immediately above and medial to the ______.
pubic tubercle
Parts of external and internal oblique muscles removed Walls of the Inguinal Canal Skin,Superficial fascia External oblique aponeurosis and fleshy fibre of Internal oblique laterally. This wall is therefore strongest where it lies opposite the weakest part of the posterior wall, namely, the ______.
Parts of external and internal oblique muscles removed Walls of the Inguinal Canal Skin,Superficial fascia External oblique aponeurosis and fleshy fibre of Internal oblique laterally. This wall is therefore strongest where it lies opposite the weakest part of the posterior wall, namely, the ______.
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Anterior wall: Conjoint tendon medially, fascia transversalis laterally. This wall is therefore strongest where it lies opposite the weakest part of the anterior wall, namely, the ______.
Anterior wall: Conjoint tendon medially, fascia transversalis laterally. This wall is therefore strongest where it lies opposite the weakest part of the anterior wall, namely, the ______.
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Posterior wall: Arching lowest fibers of the internal oblique and transversus abdominis muscles. This wall is therefore strongest where it lies opposite the weakest part of the posterior wall, namely, the ______.
Posterior wall: Arching lowest fibers of the internal oblique and transversus abdominis muscles. This wall is therefore strongest where it lies opposite the weakest part of the posterior wall, namely, the ______.
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The deep inguinal ring is an oval opening in the fascia transversalis, lies about 0.5 in.(1.3 cm) above the inguinal ligament midway between the anterior superior iliac spine and the symphysis pubis. The margins of the ring give attachment to the internal spermatic fascia (or the internal covering of the round ligament of the uterus). The superficial inguinal ring is a triangular-shaped defect in the aponeurosis of the external oblique muscle and lies immediately above and medial to the ______.
The deep inguinal ring is an oval opening in the fascia transversalis, lies about 0.5 in.(1.3 cm) above the inguinal ligament midway between the anterior superior iliac spine and the symphysis pubis. The margins of the ring give attachment to the internal spermatic fascia (or the internal covering of the round ligament of the uterus). The superficial inguinal ring is a triangular-shaped defect in the aponeurosis of the external oblique muscle and lies immediately above and medial to the ______.
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The margins of the superficial inguinal ring, sometimes called the crura, give attachment to the ______ fascia.
The margins of the superficial inguinal ring, sometimes called the crura, give attachment to the ______ fascia.
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Parts of external and internal oblique muscles removed Walls of the Inguinal Canal Skin,Superficial fascia External oblique aponeurosis and fleshy fibre of Internal oblique laterally. This wall is therefore strongest where it lies opposite the weakest part of the posterior wall, namely, the ______.
Parts of external and internal oblique muscles removed Walls of the Inguinal Canal Skin,Superficial fascia External oblique aponeurosis and fleshy fibre of Internal oblique laterally. This wall is therefore strongest where it lies opposite the weakest part of the posterior wall, namely, the ______.
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Anterior wall: Conjoint tendon medially, fascia transversalis laterally. This wall is therefore strongest where it lies opposite the weakest part of the anterior wall, namely, the ______.
Anterior wall: Conjoint tendon medially, fascia transversalis laterally. This wall is therefore strongest where it lies opposite the weakest part of the anterior wall, namely, the ______.
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Study Notes
Structure of the Inguinal Canal
- Roof or superior wall: Upturned lower edge of the inguinal ligament and the lacunar ligament at its medial end
- Floor or inferior wall: Comprised of the external oblique muscle, internal oblique muscle, transversus muscle, and fascia transversalis
Function of the Inguinal Canal
- Allows structures of the spermatic cord to pass to and from the testis to the abdomen in males
- Allows the round ligament of the uterus to pass from the uterus to the labium majus in females
Mechanics of the Inguinal Canal
- Site of potential weakness in both sexes
- Oblique passage with the weakest areas being the superficial and deep rings
- Anterior wall reinforced by the internal oblique muscle immediately in front of the deep ring
- Posterior wall reinforced by the conjoint tendon immediately behind the superficial ring
Lymphatic Drainage
- Lymphatics in the region above the umbilicus drain into the axillary lymph nodes
- Lymphatics in the region below the umbilicus drain into the superficial inguinal nodes
- Efferent vessels primarily enter the external iliac nodes and ultimately the lumbar (aortic) nodes
- Deep lymph vessels follow the arteries and drain into the internal thoracic, external iliac, posterior mediastinal, and paraaortic (lumbar) nodes
Characteristics of the Inguinal Canal
- Oblique passage through the lower part of the anterior abdominal wall
- Approximately 1.5 in (4 cm) long in adults
- Extends from the deep inguinal ring to the superficial inguinal ring
- Lies parallel to and immediately above the inguinal ligament
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Description
Learn about the anatomy of the inguinal canal, including its roof, floor, and deep structures. Understand the function of the inguinal canal in allowing structures like the spermatic cord to pass through.
