obturator foramen

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 [fo-ra´men] (pl. fora´mina) (L.)
a natural opening or passage, especially one into or through a bone.
aortic foramen aortic hiatus.
apical foramen an opening at or near the apex of the root of a tooth.
auditory foramen, external the external acoustic meatus.
auditory foramen, internal the passage for the auditory (vestibulocochlear) and facial nerves in the petrous part of the temporal bone.
cecal foramen (foramen cae´cum)
1. a blind opening between the frontal crest and the crista galli.
2. a depression on the dorsum of the tongue at the median sulcus.
condyloid foramen, anterior hypoglossal canal.
condyloid foramen, posterior condylar canal.
epiploic foramen omental foramen.
ethmoidal foramina, fora´mina ethmoida´lia small openings in the ethmoid bone at the junction of the medial wall with the roof of the orbit, the anterior transmitting the nasal branch of the ophthalmic nerve and the anterior ethmoid vessels, the posterior transmitting the posterior ethmoid vessels.
incisive foramen one of the openings of the incisive canals into the incisive fossa of the hard palate.
interventricular foramen a passage from the third to the lateral ventricle of the brain.
intervertebral foramen a passage for a spinal nerve and vessels formed by notches on the pedicles of adjacent vertebrae.
jugular foramen an opening formed by the jugular notches of the temporal and occipital bones.
foramen mag´num a large opening in the anterior inferior part of the occipital bone, between the cranial cavity and spinal canal.
mastoid foramen an opening in the temporal bone behind the mastoid process.
foramen of Monro interventricular foramen.
obturator foramen the large opening between the pubic bone and the ischium.
omental foramen the opening connecting the greater and the lesser peritoneal sacs, situated below and behind the porta hepatis; called also epiploic foramen.
optic foramen optic canal.
foramen ova´le
1. the septal opening in the fetal heart that provides a communication between the atria; it normally closes at birth. Failure to close results in an atrial septal defect.
2. an aperture in the great wing of the sphenoid for vessels and nerves.
The fully developed embryonic heart showing the foramen ovale and ductus arteriosus. From Copstead and Banasik, 2000.
petrosal foramen, foramen petro´sum a small opening sometimes present behind the foramen ovale for transmission of the lesser petrosal nerve.
foramen rotun´dum a round opening in the great wing of the sphenoid for the maxillary branch of the trigeminal nerve.
sacral foramina, anterior eight passages (four on each side) on the pelvic surface of the sacrum for the anterior branches of the sacral nerves.
sacral foramina, posterior eight passages (four on each side) on the dorsal surface of the sacrum for the posterior branches of the sacral nerves.
Scarpa's foramen an opening behind the upper medial incisor, for the nasopalatine nerve.
sciatic foramen either of two openings (the greater and smaller sciatic foramina), formed by the sacrotuberal and sacrospinal ligaments in the sciatic notch of the hip bone.
sphenopalatine foramen a space between the orbital and sphenoidal processes of the palatine bone, opening into the nasal cavity and transmitting the sphenopalatine artery and the nasal nerves.
spinous foramen a hole in the great wing of the sphenoid for the middle meningeal artery.
supraorbital foramen passage in the frontal bone for the supraorbital vessels and nerve; often present as a notch bridged only by fibrous tissue.
thebesian foramina minute openings in the walls of the right atrium through which the smallest cardiac veins (thebesian veins) empty into the heart.
transverse foramen the passage in either transverse process of a cervical vertebra that, in the upper six vertebrae, transmits the vertebral vessels.
vena cava foramen an opening in the diaphragm for the inferior vena cava and some branches of the right vagus nerve.
foramen veno´sum an opening occasionally found medial to the foramen ovale of the sphenoid, for the passage of a vein from the cavernous sinus.
vertebral foramen the large opening in a vertebra formed by its body and its arch.
foramen of Vesalius foramen venosum.
Weitbrecht's foramen a foramen in the capsule of the shoulder joint.
foramen of Winslow epiploic foramen.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ob·tu·ra·tor fo·ra·men

a large oval or irregularly triangular aperture in the hip bone, the margins of which are formed by the pubis and the ischium; it is closed in the natural state by the obturator membrane, except for a small opening for the passage of the obturator vessels and nerve.
Synonym(s): foramen obturatum [TA]
Farlex Partner Medical Dictionary © Farlex 2012

ob·tu·ra·tor for·a·men

(ob-tū-rā'tōr fōr-ā'mĕn) [TA]
A large, oval or irregularly triangular aperture in the hip bone, the margins of which are formed by the pubis and the ischium; it is closed by the obturator membrane, except for a small opening for the passage of the obturator vessels and nerve.
Synonym(s): foramen obturatum [TA] .
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

obturator foramen

A large opening on each side of the pelvis below and in front of the socket for the hip bone (the ACETABULUM).
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
CT imaging of bowel herniating through the obturator foramen and lying between the pectineus muscle anteriorly and obturator externus muscle posteriorly is diagnostic.
(v) Tender swelling in region of obturator foramen on vaginal and rectal examination.
In the first instance, this occurred at the obturator foramen on emergence into the thigh, where the posterior division is framed by the branches of the obturator artery and vein, and is crossed by the anastomosing vein between the anterior and posterior branches of the obturator vein.
Several studies have been published that describe various sites at which the obturator nerve branches into anterior and posterior divisions : a) near the obturator foramen, (6,25) b) within the obturator canal, (26,27) c) at the exit from the obturator canal, (28) and d) at the proximal border of the adductor brevis muscle.
The right OBA was noted to be arising from the anterior division of the internal iliac artery and traveled along obturator nerve to reach the obturator foramen. Its length was measured to be 54cm.
A cystic lesion at the medial aspect of the obturator foramen was identified.
The radiological assessment was completed with a CT scan, which showed a small impaction of the superolateral part of the femoral head (Figures 3 and 4), Pipkin classification type 1, and a small bone fragment in the obturator foramen. After the reduction, the patient was not allowed to bear weight for 6 weeks, as it is recommended for children older than 10 years [5], and hip flexion over 60 degrees was forbidden.
The acetabular component should lie against the teardrop medially and the inferior margin of the component should lie at the level of the obturator foramen. Varying the level of the femoral neck cut and the length of the neck of the femoral component then equalizes leg length discrepancy.
The remaining bone at the superior aspect of the obturator foramen was fractured, and osteolysis was observed in the posterior column.
Obturator hernia sac passes through obturator foramen following the path of obturator nerve and vessels.
In 2001, Delorme described a new method of inserting the tape, which passes through the obturator foramen. [sup.6] The transobturator approach (TOT) for sub-urethral tension-free vaginal tapes has since gained wide popularity in the surgical treatment of SUI.
After radiation therapy relapse free survival rates 97% with a disease free survival of over 99%.(4) A randomized trial of treatment with either a dog leg (top of T11 through L5, plus ipsilateral iliac nodes to the mid obturator foramen) or para-aortic port (top of T11 to L5 only) showed equal survival with less toxicity in the para-aortic arm.(1)