foramen

(for-a’men), pl. foram’ina [(L.]. A hole or perforation; especia!ly a hole ina bone. alveolar f., one of the openings of the posterior dental canals on the external surface of the maxillary bone. aortic f., the hindmost of the openings of the diaphragm. apical f., the foramen at the end of the root of a tooth through which pa the nerve and ve els to the dental pulp. arachnoid f., the foramen of Magendie. auditory f., external, the cxternal meatus of the auditory canal. auditory f., internal, a pa age for the auditory and facial nerves in the petrous bone. Bartholin’s f., the obturator foramen. Bichat’s f., a canal extending from the subarachnoid space to the third ventricle. Botalli’s f., connects the auricles of the fetal heart. Bozzi’s f., Sémmering’s yellow spot; the macula lutea of the retina. f. cse’cum, cecal f. 1. A foramen between the frontal bone and crista gall i. 2. A canal above the root and dorsum of the tongue. 3. A pa age in the mucous membrane of the posterior wall of the pharynx. f. cxe’cum poste’rius, a blind depre ion under the edge of the pons, formed by the termination of the anterior fi ure of the medulla oblong at a. Called also f. cercesms of Vicq d’'Azyr. carotid f., the inferior aperture of the carotid canal, for the carotid ve els. cavernous f., a pa age for the median vertebral vein in the sphenoid bone. f. centra’le. Same as fovea central is. cervical f., a pa age for the vertebral artery and vein in the transverse proce es of the cervical vertebra. condyloid f., a pa age for the h Pps nerve in the occipital bone. condyloid f., posterior, a fo a behind either occipital condyle. conjugate f., a foramen formed by a notch in each of two opposed bones. cos to transverse f., a foramen between the anterior and posterior cos to transverse ligaments for the pa age of the intercostal branch of the spinal nerve. cotyloid f., a pa age between the mar in of the acetabulum and the transverse ligament. ental f., inferior, the outer aperture of the inferior dental canal in the ramus of the lower jaw. dental f., superior, the foramen of Sc Duverney’sf. Same as /. of Winslow. Θ sary f., any foramen which gives pa age to an emi ary vein. epiploic f., the foramen of Winslow. esophageal f., the pa age for the esophagus through the diaphragm. ethmoid f. (anterior and posterior), foramina on the border of the ethmoid. ethmoid f., anterior, a canal between the ethmoid and frontal bones for the nasal branch of the ophthalmic nerve and for the anterior ethmoid ve els. Ferrein’s f., the hiatus fallopii. frontal f., the supra-orbital notch. fronto-ethmoid t, a cecal foramen lying between the frontal and ethmoid bones. Galen’s f., the opening of the anterior cardiac fein into the right auricle. tig an’s f., a foramen said to exist in the base of the transverse proce of a lumbar vertebra, seldom persisting to adult life. Huschke’s f., a perforation found near the inner extremity of the tympanal plate: caused by arrest of development. incisor f., the aperture for the anterior palatine artery in the alveolar margin. infraorbital f., the pa age in the superior maxillary bone for the infra-orbital nerve and ve els. innominate f., an occasional pa age in the temral bone for the small superficial petrosal nerve. terventricular f., the foramen of Monro. intervertebral f., any pa age (anterior or terior) formed by the notches of any two ad- Jacent vertebra. intervertebral f., posterior, any space between the articular proce es of adjacent vertebre. jugular f., the foramen lacerum poster i us. Key and Retszius’ f., two openings in the inferior choroid tela of the fourth ventricle at the lateral rece es: they open into the cisterna magna. la’‘cerum. Same as J. lacerum medium. f. la’cerum ante’rius, the sphenoid fi ure. f. la’cerum me’dium, a cleft in the petrous bone and great wing of the sphenoid bone for the carotid artery and the large superficial petrosal nerve. f. la’cerum poste’- rius, the space formed by the jugular notches of the temporal and occipital bones. Luschka’s f., a semilunar opening between the valvula tarini and the ligula, at the lateral angle of the fourth ventricle on either side. ndie’s f., the foramen which connects the fourth ventricle with the subarachnoid space. f£. mag’num, a great orifice in the occipital bone through which the brain and spinal cord are connected. mandibular Same as dental f., inferior. mastoid f., a small aperture behind the mastoid proce for an artery and vein. medullary f. Same as nutrient f. meibo: f., the foramen cacum of the tongue. mental f., a foramen of the lower jaw for the mental nerve and ve els. ζ. of mro, an opening back of the anterior pillars of the fornix, forming a pa age between the third and the lateral ventricle of the brain, Morand’s e foramen cecum (2d def.). mor, - ιιίιπ f., the interval between the basilar Does of the occipital bone and the upper border of the superior constrictor muscles of the pharynx. f. nervo’sum, one of the openings on the tympanic edge of the lamina spiral is for the pa age of