Muscular lacuna

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The Muscular lacuna (Latin: lacuna musculorum) is the lateral compartment inferior to the inguinal ligament, for the passage of the iliopsoas muscle, the femoral nerve and the nervus cutaneus femoris lateralis; it is separated by the iliopectineal arch from the vascular lacuna.

List of muscles of abdominopelvic cavity (TA A04.5, GA 4.408)

Abdomen/
wall

Anterior/
lateral

Muscle	Abdominal external oblique · Transversus abdominis/Conjoint tendon · Rectus sheath (rectus abdominis, pyramidalis) · Arcuate line · Tendinous intersection Cremaster · Abdominal internal oblique

Fascia	Fascia/abdominal fascia: panniculus adiposus (Fascia of Camper) · stratum membranosum (Fascia of Scarpa) · Transversalis fascia (Interfoveolar ligament) Linea alba · Linea semilunaris · Inguinal triangle Inguinal canal (Deep inguinal ring, Superficial inguinal ring, Intercrural fibers, Crura of superficial inguinal ring) Inguinal ligament (Pectineal ligament, Lacunar ligament, Reflected ligament)

Posterior

Muscle	quadratus lumborum · psoas major/psoas minor · iliacus

Fascia	iliopsoas fascia (Iliac fascia/Iliopectineal arch)

Pelvis

Muscle	levator ani (iliococcygeus, pubococcygeus, puborectalis) · coccygeus

Fascia	fascia/pelvic fascia visceral (Rectovaginal fascia, Rectoprostatic fascia) · parietal (Obturator fascia/Tendinous arch, Piriformis fascia) floor/diaphragm: Superior fascia of pelvic diaphragm (Pubovesical ligament, Puboprostatic ligament) · Inferior fascia of pelvic diaphragm Anococcygeal body

M: MUS, DF+DRCT

anat (h/n, u, t/d, a/p, l)/phys/devp/hist

noco (m, s, c)/cong (d)/tumr, sysi/epon, injr

proc, drug (M1A/3)

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