| isthmus of auditory tube | The narrowest portion of the auditory tube at the junction of the cartilaginous and bony portions. Synonym: isthmus tubae auditivae, isthmus of eustachian tube. (05 Mar 2000) |
|---|---|
| tympanic opening of auditory tube | An opening in the anterior part of the tympanic cavity below the canal for the tensor tympani muscle. Synonym: ostium tympanicum tubae auditivae, tympanic opening of eustachian tube. (05 Mar 2000) |
| lateral lamina of cartilaginous auditory tube | The narrow lateral portion of the cartilaginous part of the auditory tube. Synonym: lamina lateralis cartilaginis tubae auditivae, lamina cartilaginis lateralis tubae auditivae, lateral cartilaginous layer, lateral layer of cartilaginous auditory tube. (05 Mar 2000) |
| lateral layer of cartilaginous auditory tube | The narrow lateral portion of the cartilaginous part of the auditory tube. Synonym: lamina lateralis cartilaginis tubae auditivae, lamina cartilaginis lateralis tubae auditivae, lateral cartilaginous layer, lateral layer of cartilaginous auditory tube. (05 Mar 2000) |
| 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) |
| 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) |
| gingivo-osseous | Referring to the gingiva and its underlying bone. (05 Mar 2000) |
| chondro-osseous | Relating to cartilage and bone, either as a mixture of the two tissues or as a junction between the two, such as the union of a rib and its costal cartilage. (05 Mar 2000) |
| osseous | Composed of bone; resembling bone; capable of forming bone; bony; ossific. Origin: L. Osseus, from os, ossis bone; akin to Gr, Skr. Asthi. Cf. Oyster. Source: Websters Dictionary (01 Mar 1998) |
| osseous ampulla | A circumscribed dilation of one extremity of each of the three bony saemicircular canals, anterior, posterior, and lateral; each contains an ampulla of the saemicircular ducts. Synonym: ampulla ossea, osseous ampulla. (05 Mar 2000) |