Lacuna musculorum et vasorum

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The lacuna musculorum ( lat .: Muscle port ) and the lacuna vasorum ( lat .: Vascular port ) are passages for arteries , veins , nerves and muscles that run under the inguinal ligament ( ligamentum inguinale ) and supply the thigh .

Location and limitations

Muscle gate

The muscle port has a triangular cross-section. It is bounded on the abdomen ( ventral ) by the inguinal ligament, and on the back ( dorsal ) by the upper edge of the ilium ( ilium ). The ( medial ) delimitation directed towards the middle forms the arched band that extends between the inguinal ligament and the bony elevation ( Eminentia iliopubica ) of the hip bone ( Os coxae ) ( Arcus iliopectineus ). This arch separates the muscle port from the vascular port.

Vascular gate

The vascular portal is bounded on the abdomen by the inguinal ligament, on the back by the upper edge of the pubic bone ( os pubis ). The side ( lateral ) boundary forms the arched band. This arch separates the vascular port from the muscle port. The border of the vascular portal directed towards the middle forms the portal ligament ( ligamentum lacunare ).


Muscle gate

The lateral thigh cutaneous nerve ( Nervus cutaneus femoris lateralis ), the thigh nerve ( Nervus femoralis ) and the lumbar and iliac muscles ( Musculus iliopsoas ) run through the muscle port .

Vascular gate

The femoral artery ( arteria femoralis ), the pulse of which can be felt, the femoral vein ( vena femoralis ) and the thigh branch ( ramus femoralis ) of the genitofemoral nerve run in a common vascular sheath . In addition, there are lymph nodes and lymph vessels such as B. the Rosenmüller lymph node . Most of the vascular portal is filled with adipose and connective tissue . The part of the vascular portal facing the middle is also known as the thigh ring ( anulus femoralis ) and can become the inner hernial port of a femoral hernia . It is closed by the septum intermuscular femoris laterale ( septum intermusculare femoris laterale ), part of the inner muscle bandage ( fascia ) of the abdominal wall ( fascia transversalis abdominis ).

First aid

In the case of heavy bleeding in the leg area, which is often a life-threatening situation, the femoral artery is pressed against the bone structures of the pubic bone as part of first aid in order to prevent bleeding to death.


  • Theodor H. Schiebler (Ed.): Anatomy: Histology, history of development, macroscopic and microscopic anatomy, topography . Springer 2004, ISBN 3540219668 .