| LCN | lateral cervical nucleus; left caudate nucleus; lipocalin |
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| RN | radionuclide; red nucleus; Registered Nurse; registry number; residual nitrogen; reticular nucleus |
| SON | superior olivary nucleus; supraoptic nucleus |
| STN | streptozocin; subthalamic nucleus; supratrochlear nucleus |
| TN | talonavicular; tarsonavicular; team nursing; temperature normal; tenascin; trigeminal nucleus; total... |
| descending branch | Branch of an artery or nerve passing inferiorly. Descending branches have been described for the following: descending branch of hypoglossal nerve, superior root of ansa cervicalis; descending branch of lateral circumflex femoral artery; descending branch of the occipital artery. Synonym: ramus descendens. (05 Mar 2000) |
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| descending branch of hypoglossal nerve | The fibres that arise from the first and second cervical nerves, accompany the hypoglossal nerve, then branch off to meet the inferior root in the ansa cervicalis; they innervate the infrahyoid muscles. Synonym: descendens hypoglossi, descending branch of hypoglossal nerve, radix superior ansae cervicalis. (05 Mar 2000) |
| descending branch of lateral circumflex femoral artery | <anatomy, artery> A major branch of the lateral circumflex femoral artery accompanying the nerve to the vastus lateralis muscle along the anterior border of that muscle and deep to the rectus femoris muscle, supplying both muscles. Anastomosis: with lateral superior genicular artery, i.e., it contributes to the articular network of the knee. Synonym: ramus descendens arteriae circumflexae femoris lateralis. (05 Mar 2000) |
| descending branch of occipital artery | <anatomy, artery> Origin: occipital artery within occipital groove; distribution: posterior neck muscles and cervical trapezius muscle; anastomoses: superficial and deep cervical arteries, vertebral artery. Synonym: ramus descendens arteriae occipitalis, princeps cervicis artery, princeps cervicis. (05 Mar 2000) |
| descending colon | The fourth portion of the large intestine (colon) that communicates with the transverse colon in the left-upper quadrant of the abdomen and the rectum below. (27 Sep 1997) |
| descending current | The direction of current flow in a nerve when the cathode is placed peripheral to the anode, in contrast to ascending current. Synonym: centrifugal current. (05 Mar 2000) |
| descending degeneration | Orthograde (wallerian) degeneration of an injured nerve fibre; i.e., distal to the lesion, degeneration caudal to the level of a spinal cord lesion. (05 Mar 2000) |
| descending genicular artery | <anatomy, artery> Origin, femoral, in adductor canal; distribution, penetrates vastoadductor fascia to supply knee joint and adjacent parts; anastomoses, medial superior genicular, medial inferior genicular, lateral superior genicular, lateral inferior genicular and anterior tibial recurrent arteries, i.e., articular network of knee. Synonym: arteria genus descendens, arteria anastomotica magna, descending artery of knee, great anastomotic artery. (05 Mar 2000) |
| descending neuritis | Inflammation progressing downward along a nerve trunk in a direction toward the periphery. (05 Mar 2000) |
| descending palatine artery | <anatomy, artery> Origin, maxillary; distribution, soft palate, gums, and bones and mucous membrane of hard palate; anastomoses, sphenopalatine, ascending palatine, ascending pharyngeal, and tonsillar branches of facial. Synonym: arteria palatina descendens. (05 Mar 2000) |
| descending part of aorta | A part of the aorta, further divided into the thoracic aorta and the abdominal aorta. Synonym: pars descendens aortae, aorta descendens, descending part of aorta. (05 Mar 2000) |
| descending part of duodenum | descending part of duodenum |
| descending part of facial canal | Second portion of the facial canal, after the horizontal parts, beginning at the posterior end of the lateral crus where the canal begins to descend. It runs vertically downward, ending at the stylomastoid foramen. Anteriorly, the descending part of the facial canal communicates with the tympanic cavity via the canaliculus for the nerve to the stapedius muscle and the posterior canaliculus of the chorda tympani. (05 Mar 2000) |
| descending posterior branch | The descending posterior branch of the superior lobar branch of the right pulmonary artery. Synonym: ramus posterior descendens. (05 Mar 2000) |
| descending scapular artery | <anatomy, artery> Origin, subclavian or as the deep branch of the transverse cervical; distribution, passes deep to the rhomboid muscles, supplying them and other muscles and skin along the vertebral border of the scapula; anastomoses, suprascapular and scapular circumflex. Synonym: arteria dorsalis scapulae, rami profundi arteriae transversae cervicis, ramus profundus arteriae transversae colli, arteria scapularis dorsalis, arteria scapularis descendens, deep branch of the transverse cervical artery, descending scapular artery, ramus profundus arteria scapularis descendens. (05 Mar 2000) |