| lateral branches | Branches directed away from the midline, to the side. Nomina Anatomica lists lateral branches (ramus lasteralis/rami laterales) of the following: 1) anterior interventricular artery, ramus lateralis interventricularis anterioris arteriae coronariae sinistrae; 2) anterolateral central arteries, rami laterales arteriarum centralium anterolateralium; 3) dorsal primary rami of spinal nerves, rami laterales ramorum dorsalium nervorum cervicalium/thoracalium/lumbalium/sacralium; 4) left branch of portal vein, rami laterales rami sinistri venae portae hepatis; 5) left hepatic duct, ramus lateralis ductus hepatici sinistri; 6) middle lobe branch of right pulmonary artery, ramus lateralis ramorum lobarium medium arteriorum pulmonarium dextrum; 7) supraorbital nerve, ramus lateralis nervi supraorbitalis. Synonym: rami laterales. (05 Mar 2000) |
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| lateral calcaneal branches of sural nerve | <anatomy, nerve> Branches of sural nerve providing cutaneous innervation to posterior aspect of distal leg and lateral aspect of proximal portion of foot. Synonym: rami calcanei laterales nervi suralis. (05 Mar 2000) |
| lateral cutaneous branches of intercostal nerves | Branches arising in approximately the anterior axillary line at the level of the second through sixth intercostal spaces. Synonym: rami mammarii laterales nervorum intercostalium, lateral cutaneous branches of intercostal nerves. (05 Mar 2000) |
| lateral cutaneous branches of ventral primary ramus of thoracic spinal nerves | Branches arising in approximately the anterior axillary line at the level of the second through sixth intercostal spaces. Synonym: rami mammarii laterales nervorum intercostalium, lateral cutaneous branches of intercostal nerves. (05 Mar 2000) |
| lateral mammary branches | Branches primarily distributed to the lateral portion of the breast. Synonym: rami mammarii laterales. (05 Mar 2000) |
| lateral mammary branches of lateral thoracic artery | <anatomy, artery> Branches of the lateral thoracic artery which extend around the lateral borders of the pectoral muscles to supply the lateral aspect of the breast and mammary gland. Synonym: rami mammarii laterales arteriae thoracicae lateralis. (05 Mar 2000) |
| lateral nasal branches of anterior ethmoidal nerve | <anatomy, nerve> Branches of nasociliary nerve distributed to walls of nasal cavity. Synonym: rami nasales laterales nervi ethmoidalis anterioris. (05 Mar 2000) |
| left coronary artery branches | <radiology> Left anterior descending (LAD) artery, diagonal branches, septal branches (short br. at 90' angle), left circumflex artery (LCA), obtuse marginal branches (12 Dec 1998) |
| lingual branches | Branches to the tongue. Nomina Anatomica lists lingual branches of 1) hypoglossal nerve, rami linguales nervi hypoglossi; 2) lingual nerve, rami linguales nervi lingualis; 3) glossopharyngeal nerve, rami linguales nervi glossopharyngei. Synonym: rami linguales. (05 Mar 2000) |
| abducens nucleus | Nucleus of abducent nervenucleus abducentis, a group of motor neurons in the lower part of the pons, innervating the lateral rectus muscle of the eye; unique among motor cranial nerve nuclei in that it consists of two distinct populations of neurons: neurons that give rise to fibres forming the abducens nerve root and those internuclear neurons whose processes cross the midline, ascend in the opposite medial longitudinal fasciculus, and terminate upon specific oculomotor neurons; considered a primary centre for mechanisms controlling conjugate horizontal gaze. Synonym: nucleus nervi abducentis. (05 Mar 2000) |
| accessory cuneate nucleus | A cell group lateral to the cuneate nucleus which receives posterior-root fibres corresponding to the proprioceptive innervation of the arm and hand; it projects to the cerebellum by way of the cuneocerebellar tract, and can be considered the upper-extremity equivalent of the thoracic nucleus. Synonym: nucleus cuneatus accessorius, external cuneate nucleus, lateral cuneate nucleus, Monakow's nucleus. (05 Mar 2000) |
| almond nucleus | Almond-shaped group of basal nuclei anterior to the inferior horn of the lateral ventricle of the brain, within the temporal lobe. The amygdala is part of the limbic system. (12 Dec 1998) |
| ambiguous nucleus | A very slender, longitudinal column of motor neurons in the ventrolateral medulla oblongata; its efferent fibres leave with the vagus and glossopharyngeal nerve and innervate the striated muscle fibres of the pharynx (including the musculus levator veli palatini) and the vocal cord muscles of the larynx. Synonym: ambiguous nucleus. (05 Mar 2000) |
| amygdaloid nucleus | Almond-shaped group of basal nuclei anterior to the inferior horn of the lateral ventricle of the brain, within the temporal lobe. The amygdala is part of the limbic system. (12 Dec 1998) |
| anterior extremity of caudate nucleus | The head or anterior extremity of the caudate nucleus projecting into the anterior horn of the lateral ventricle. Synonym: caput nuclei caudati, anterior extremity of caudate nucleus. (05 Mar 2000) |