| arteria segmenti anterioris superioris renis | Origin, anterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti anterioris superioris renis, artery of anterior {superior segment of kidney}. (05 Mar 2000) |
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| arteria segmenti inferioris renis | Origin, anterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti inferioris renis, artery of inferior segment of kidney. (05 Mar 2000) |
| arteria segmenti posterioris renis | Origin, continuation of the posterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti posterioris renis, artery of posterior segment of kidney. (05 Mar 2000) |
| arteria segmenti superioris renis | Origin, anterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti superioris renis, artery of superior segment of kidney. (05 Mar 2000) |
| arteria spermatica interna | <anatomy, artery> Origin, aorta; branches, ureteral, cremasteric, epididymal; distribution, testicle and parts designated by names of branches; anastomoses, branches of renal, inferior epigastric, deferential. Synonym: arteria testicularis, arteria spermatica interna, internal spermatic artery. (05 Mar 2000) |
| arteria sphenopalatina | <anatomy, artery> Origin, third part of maxillary; distribution, posterior portion of lateral nasal wall and septum; anastomoses, branches of descending palatine, superior labial, and infraorbital. Synonym: arteria sphenopalatina. (05 Mar 2000) |
| arteria spinalis anterior | <anatomy, artery> Origin, intracranial part of vertebral; distribution, spinal cord and pia mater; anastomoses, spinal of intercostal and lumbar arteries. Synonym: arteria spinalis anterior. (05 Mar 2000) |
| arteria spinalis posterior | <anatomy, artery> Origin, vertebral; distribution, medulla, spinal cord, and pia mater; anastomoses, spinal branches of intercostal arteries. Synonym: arteria spinalis posterior. (05 Mar 2000) |
| arteria splenica | <anatomy, artery> The largest branch of the coeliac trunk with distribution to the spleen, pancreas, stomach and greater omentum. (12 Dec 1998) |
| arteria stylomastoidea | <anatomy, artery> Origin, posterior auricular; distribution, external acoustic meatus, mastoid cells, saemicircular canals, stapedius muscle, and vestibule; anastomoses, tympanic branches of internal carotid and ascending pharyngeal, and labyrinthine arteries. Synonym: arteria stylomastoidea. (05 Mar 2000) |
| arteria subclavia | <anatomy, artery> Artery arising from the brachiocephalic trunk on the right side and from the arch of the aorta on the left side. It distributes to the neck, thoracic wall, spinal cord, brain, meninges, and upper limb. (12 Dec 1998) |
| arteria subcostalis | <anatomy, artery> Origin, thoracic aorta; distribution, inferior to twelfth rib in a manner similar to posterior intercostal arteries. Synonym: arteria subcostalis. (05 Mar 2000) |
| arteria sublingualis | <anatomy, artery> Origin, lingual; distribution, extrinsic muscles of tongue, sublingual gland, mucosa of region; anastomoses, the artery of opposite side and submental. Synonym: arteria sublingualis. (05 Mar 2000) |
| arteria submentalis | <anatomy, artery> Origin, facial; distribution, mylohyoid muscle, submandibular and sublingual glands, and structures of lower lip; anastomoses, inferior labial, mental branch of inferior dental and sublingual. Synonym: arteria submentalis. (05 Mar 2000) |
| arteria subscapularis | <anatomy, artery> Origin, axillary; branches, circumflex scapular, thoracodorsal; distribution, muscles of shoulder and scapular region; anastomoses, branches of transverse cervical, suprascapular, lateral thoracic, and intercostals. Synonym: arteria subscapularis. (05 Mar 2000) |