intervertebral 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.

in·ter·ver·te·bral fo·ra·men

one of the lateral openings to the vertebral canal giving passage to the spinal nerves and vessels; bounded by the pedicles of adjacent vertebrae superiorly and inferiorly, the vertebral body (mostly of the superior vertebra) and intervertebral disc anteriorly, and the articular processes forming the zygapophysial joint posteriorly.
Synonym(s): foramen intervertebrale [TA]
Farlex Partner Medical Dictionary © Farlex 2012

in·ter·ver·te·bral for·a·men

(in'tĕr-vĕr'tĕ-brăl fōr-ā'mĕn) [TA]
The lateral opening to the vertebral canal that allows for the emergence of spinal nerve roots. The intervertebral foramen is composed of inferior and superior vertebral pedicles.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
The vertical distance between the two parallel lines was recorded [Figure 1]a, and the intervertebral foramina enlargement ratio was calculated as follows.{Figure 1}
reported the case of a 2month-old boy who developed an abdominal ERWT extending through the intervertebral foramina, encroaching the spinal cord [13].
Traction increases the intervertebral gap and so the space of intervertebral foramina to relieve pressure on the nerve root affected.
Morphometric comparison of computed tomography to magnetic resonance imaging in the evaluation of the lumbar intervertebral foramina. Clin.
Paravertebral block (PVB) is achieved by injection of local anesthetic in a space just lateral to the spinal canal, where the spinal nerves emerge from the intervertebral foramina. PVB results in ipsilateral segmental, sensory and sympathetic nerve blockade (3).
One is that the client's posterior extensor musculature (e.g., paraspinal group and quadratus lumborum) is stretched; the other is that the size of the lumbar intervertebral foramina is increased (maximal flexion can increase the size of the intervertebral foramina by 20%).
(9) Whereas, congenital fusions are characterized by absence of the intervertebral disc, or its replacement by a radio-opaque line; the "wasp-waist" appearance; smooth intervertebral foramina; a single spinous process for two vertebral bodies; and maintenance of vertebral body height on roentgenologic examination.
The intervertebral foramina are formed by the inferior notch and superior notch of two adjacent pedicles and are vertically oblong in design (see Figure 1).
The gradual anatomical narrowing of the vertebral canal or intervertebral foramina of the lumbar vertebrae is called lumbar spinal stenosis resulting to compression of the spinal cord that traverses the centrally located vertebral canal or lumbosacral spinal nerve roots that traverses the laterally located intervertebral foramina.
Successful regional anesthesia of the upper extremity requires knowledge of brachial plexus anatomy from its origin, where the nerves emerge from the intervertebral foramina, to its termination in the peripheral nerves.
Also located between each two adjacent vertebrae are two intervertebral foramina (IVFs), through which the spinal nerves from the spinal cord pass.
Complete dissection of the neck was done and the roots were followed up to the intervertebral foramina by removing scalenus anterior muscle.