Obturator membrane

From Wikipedia, the free encyclopedia

Obturator membrane

The obturator membrane.
Latin	membrana obturatoria
Gray's	subject #128 476

The obturator membrane is a thin fibrous sheet, which almost completely closes the obturator foramen.

Its fibers are arranged in interlacing bundles mainly transverse in direction; the uppermost bundle is attached to the obturator tubercles and completes the obturator canal for the passage of the obturator vessels and nerve.

The membrane is attached to the sharp margin of the obturator foramen except at its lower lateral angle, where it is fixed to the pelvic surface of the inferior ramus of the ischium, i. e., within the margin.

Both obturator muscles are connected with this membrane.

Additional Images

Hip joint. Lateral view. Obturator membrane

External links

SUNY Figs 17:03-11
lljoints at The Anatomy Lesson by Wesley Norman (Georgetown University) (hipjointposterior)

This article incorporates text from a public domain edition of Gray's Anatomy.

Joints and ligaments of torso (TA A03.02–04, GA 3.299)

Vertebral

Syndesmosis

Of vertebral bodies	anterior longitudinal ligament posterior longitudinal ligament

Of vertebral arches	ligamenta flava supraspinous ligament (nuchal ligament) interspinal ligament intertransverse ligament

Symphysis

Synovial joint

Atlanto-axial	median: Cruciate ligament of atlas (Transverse ligament of atlas) Alar ligament Apical ligament of dens Tectorial membrane of atlanto-axial joint lateral: no ligaments anterior atlantoaxial ligament posterior atlantoaxial ligament

Zygapophysial	no ligaments

Lumbosacral	iliolumbar ligament

Sacrococcygeal	anterior sacrococcygeal ligament posterior sacrococcygeal ligament

Thorax

Costovertebral

Head of rib	Radiate ligament Intra-articular ligament

Costotransverse	Costotransverse ligament Lumbocostal ligament

Sternocostal

Interchondral

no ligaments

Costochondral

no ligaments

Pelvis

Syndesmoses of pelvic girdle	Obturator membrane Obturator canal

Pubic symphysis	superior pubic ligament inferior pubic ligament

Sacroiliac	anterior sacroiliac ligament posterior sacroiliac ligament interosseous sacroiliac ligament ligaments connecting the sacrum and ischium: sacrotuberous ligament sacrospinous ligament Greater sciatic foramen Lesser sciatic foramen

M: JNT

anat (h/c, u, t, l)/phys

noco (arth/defr/back/soft)/cong, sysi/epon, injr

proc, drug (M01C, M4)

This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.