| ADAS-COG | cognitive portion of the Alzheimer's Disease Assessment Scale |
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| EP | echo planar; ectopic pregnancy; edible portion; electrophoresis; electrophysiologic; electroprecipit... |
| Fd | the amino-terminal portion of the heavy chain of an immunoglobulin molecule; ferredoxin |
| S-T | [segment] in electrocardiography, the portion of the segment between the end of the S wave and the b... |
occlusal position
| accessory portion of spinal accessory nerve | <anatomy, nerve> The roots of the accessory nerve which arise from the medulla; the nerve fibres of the cranial root join the intracranial portion of the vagus nerve and are distributed to the pharyngeal plexus, providing the motor innervation of the soft palate (except the tensor veli palati) and the pharynx. Synonym: pars vagalis nervi accessorii, radices craniales, accessory portion of spinal accessory nerve, cranial roots, vagal part of accessory nerve, vagal part. (05 Mar 2000) |
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| vaginal portion of cervix | The part of the cervix uteri contained within the vagina. Synonym: portio vaginalis. (05 Mar 2000) |
| mesenteric portion of small intestine | The freely movable portion of the small intestine supplied with a mesentery, comprising the jejunum and ileum. Synonym: mesenteric portion of small intestine. (05 Mar 2000) |
| portion | 1. That which is divided off or separated, as a part from a whole; a separated part of anything. 2. A part considered by itself, though not actually cut off or separated from the whole. "These are parts of his ways; but how little a portion is heard of him!" (Job xxvi. 14) "Portions and parcels of the dreadful past." (Tennyson) 3. A part assigned; allotment; share; fate. "The lord of that servant . . . Will appoint him his portion with the unbelievers." (Luke xii. 46) "Man's portion is to die and rise again." (Keble) 4. The part of an estate given to a child or heir, or descending to him by law, and distributed to him in the settlement of the estate; an inheritance. "Give me the portion of goods that falleth to me." (Luke xv. 12) 5. A wife's fortune; a dowry. Synonym: Division, share, parcel, quantity, allotment, dividend. Portion, Part. Part is generic, having a simple reference to some whole. Portion has the additional idea of such a division as bears reference to an individual, or is allotted to some object; as, a portion of one's time; a portion of Scripture. Origin: F, from L. Portio, akin to pars, partis, a part. See Part. 1. To separate or divide into portions or shares; to parcel; to distribute. "And portion to his tribes the wide domain." (Pope) 2. To endow with a portion or inheritance. "Him portioned maids, apprenticed orphans, blest." (Pope) Origin: Portioned; Portioning. Source: Websters Dictionary (01 Mar 1998) |
| sphincter of third portion of duodenum | A physiological sphincter supposedly located at the horizontal (inferior) portion of the duodenum. (05 Mar 2000) |
| subcutaneous portion of external anal sphincter | pars subcutanea musculi sphincteri ani externi, subcutaneous portion of external anal sphincter |
| supravaginal portion of cervix | The part of the cervix of the uterus lying above the attachment of the vagina. Synonym: portio supravaginalis. (05 Mar 2000) |
| anterior surface of petrous part of temporal bone | The surface of the petrous part of the temporal bone contributing to the floor of the middle cranial fossa. Synonym: facies anterior partis petrosae ossis temporalis. (05 Mar 2000) |
| apex of petrous part of temporal bone | The irregular antero-medial extremity of the petrous part on which the anterior end of the carotid canal opens. Synonym: apex partis petrosae ossis temporalis. (05 Mar 2000) |
| petrous | 1. Like stone; hard; stony; rocky; as, the petrous part of the temporal bone. 2. <anatomy> Same as Petrosal. Origin: L. Petrosus, fr. Petra a stone. Source: Websters Dictionary (01 Mar 1998) |
| petrous bone | <anatomy, artery> The part of the internal carotid artery in the carotid canal; its branches are carotidotympanic arteries and the artery of the pterygoid canal. Synonym: pars petrosa arteriae carotidis internae, petrous bone. (05 Mar 2000) |
| petrous ganglion | <anatomy, nerve> The lower of two sensory ganglion's on the glossopharyngeal nerve as it traverses the jugular foramen. Synonym: ganglion inferius nervi glossopharyngei, Andersch's ganglion, extracranial ganglia, ganglion extracraniale, petrosal ganglion, petrous ganglion. (05 Mar 2000) |
| petrous part of internal carotid artery | <anatomy, artery> The part of the internal carotid artery in the carotid canal; its branches are carotidotympanic arteries and the artery of the pterygoid canal. Synonym: pars petrosa arteriae carotidis internae, petrous bone. (05 Mar 2000) |
| petrous part of temporal bone | The part of the temporal bone that contains the structures of the inner ear and the second part of the internal carotid artery; in antenatal life it appears as a separate ossification centre. Synonym: pars petrosa ossis temporalis, periotic bone, petrosal bone, petrous pyramid. (05 Mar 2000) |
| petrous pyramid | The part of the temporal bone that contains the structures of the inner ear and the second part of the internal carotid artery; in antenatal life it appears as a separate ossification centre. Synonym: pars petrosa ossis temporalis, periotic bone, petrosal bone, petrous pyramid. (05 Mar 2000) |
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