| pars squamosa ossis temporalis | The broad, flat, thin (scale-like) anterior and superior portion of the temporal bone forming part of the lateral wall of the cranial vault. Synonym: pars squamosa ossis temporalis, squama temporalis, temporal squama. (05 Mar 2000) |
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| pars sternalis diaphragmatis | The small slip on each side that arises from the inner surface of the xiphoid process and inserts on the central tendon. Synonym: pars sternalis diaphragmatis. (05 Mar 2000) |
| pars sternocostalis musculi pectoralis majoris | pars sternocostalis musculi pectoralis majoris, sternocostal head of pectoralis major |
| pars subcutanea musculi sphincteri ani externi | pars subcutanea musculi sphincteri ani externi, subcutaneous portion of external anal sphincter |
| pars sublentiformis capsulae internae | The part of the internal capsule below the caudal third of the lentiform nucleus that contains the auditory radiation as well as that part of the optic radiation representing the upper part of the contralateral half of the binocular visual field. Synonym: pars sublentiformis capsulae internae, sublenticular limb of internal capsule. (05 Mar 2000) |
| pars superficialis glandulae parotideae | pars superficialis glandulae parotideae |
| pars superficialis musculi masseteri | pars superficialis musculi masseteri |
| pars superficialis musculi sphincteri ani externi | pars superficialis musculi sphincteri ani externi |
| pars superior duodeni | pars superior duodeni |
| pars superior faciei diaphragmaticae hepatis | The convex superior portion of the diaphragmatic surface of the liver. Synonym: pars superior faciei diaphragmaticae hepatis. (05 Mar 2000) |
| pars superior ganglii vestibularis | Rostral part, the superior part of the vestibular ganglion that receives fibres from the maculae of the utricle and the saccule and the ampullae of the anterior and lateral saemicircular ducts. Synonym: pars superior ganglii vestibularis. (05 Mar 2000) |
| pars superior rami lingularis venae pulmonis sinistri | <anatomy, vein> The vein that drains the superior lingular bronchopulmonary segment of the left lung. Synonym: pars superior rami lingularis venae pulmonis sinistri. (05 Mar 2000) |
| pars supraclavicularis plexus brachialis | The part of the brachial plexus, including the roots, trunks, and divisions, that gives rise to the dorsal scapular, long thoracic, suprascapular and subclavian nerves. Synonym: pars supraclavicularis plexus brachialis. (05 Mar 2000) |
| pars sympathica | <anatomy, physiology> One of the two divisions of the vertebrate autonomic nervous system (the other being the parasympathetic nervous system). The sympathetic preganglionic neurons have their cell bodies in the thoracic and lumbar regions of the spinal cord and connect to the paravertebral chain of sympathetic ganglia. Innervate heart and blood vessels, sweat glands, viscera and the adrenal medulla. most sympathetic neurons, but not all, use noradrenaline as a post ganglionic neurotransmitter. (19 Jan 1998) |
| pars tecta | <anatomy> An obsolete term, pars tecta duodeni, the part of duodenum covered by the root of the transverse mesocolon, the coalescence of the ascending mesocolon, and the root of the mesentery, pars tecta pancreatis, hidden portion of the pancreas; part of the pancreas covered by the root of the transverse mesocolon, the coalescence of the ascending mesocolon, and the root of the mesentery, pars tecta renalis, hidden portion of the kidney; part of the kidney covered by the root of the transverse mesocolon, pars tecta ureteralis, hidden portion of the ureter; part of the right ureter covered (crossed) by the root of the mesentery, and of the left ureter covered (crossed) by the root of the sigmoid mesocolon. Synonym: hidden part. (05 Mar 2000) |