| pars intermedia commissura bulborum | A narrow median band that connects the two masses of erectile tissue (the bulbus vestibuli) on either side of the vaginal orifice. Synonym: pars intermedia commissura bulborum, commissura bulborum, intermediate part of vestibular bulb, pars intermedia bulborum. (05 Mar 2000) |
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| pars intermembranacea rimae glottidis | The portion of the opening anterior to the vocal processes of the arytenoid cartilages bounded by the vocal ligaments. Synonym: pars intermembranacea rimae glottidis, glottis vocalis, intermembranous part of glottic opening. (05 Mar 2000) |
| pars intersegmentalis | pars intersegmentalis |
| pars intracanaliculus nervi optici | <anatomy, nerve> The part of the optic nerve lying within the optic canal. Synonym: pars intracanaliculus nervi optici. (05 Mar 2000) |
| pars intracranialis arteriae vertebralis | See: vertebral artery. (05 Mar 2000) |
| pars intracranialis nervi optici | <anatomy, nerve> The portion of the optic nerve between the optic canal and the optic chiasm. Synonym: pars intracranialis nervi optici. (05 Mar 2000) |
| pars intralaminaris nervi optici | <anatomy, nerve> The portion of the optic nerve as it passes through the lamina cribrosa of the sclera. Synonym: pars intralaminaris nervi optici. (05 Mar 2000) |
| pars intralobaris venae pulmonalis dextrae superioris | <anatomy, vein> The vein draining the apical and posterior segments of the right lung; tributary to the posterior branch of the right superior pulmonary vein. Synonym: pars intralobaris venae pulmonalis dextrae superioris. (05 Mar 2000) |
| pars intraocularis nervi optici | <anatomy, nerve> The part of the optic nerve within the eye; it is divided into intralaminar, postlaminar, and prelaminar parts. Synonym: pars intraocularis nervi optici. (05 Mar 2000) |
| pars intrasegmentalis | A vein emerging from the bronchopulmonary segment it drains; a tributary to a branch of a pulmonary vein. Synonym: pars intrasegmentalis, intrasegmental part. (05 Mar 2000) |
| pars iridica retinae | pars iridica retinae |
| pars labialis musculi orbicularis oris | <anatomy> The major part of the orbicularis oris muscle within the body of the lips. Synonym: pars labialis musculi orbicularis oris. (05 Mar 2000) |
| pars lacrimalis musculi orbicularis oculi | <anatomy> See: orbicularis oculi muscle. Synonym: pars lacrimalis musculi orbicularis oculi, Duverney's muscle, Horner's muscle, musculus tensor tarsi. (05 Mar 2000) |
| pars laryngea pharyngis | The part of the pharynx lying below the aperture of the larynx and behind the larynx; it extends from the vestibule of the larynx to the oesophagus at the level of the inferior border of the cricoid cartilage. Synonym: pars laryngea pharyngis, hypopharynx, laryngeal part of pharynx, laryngeal pharynx. (05 Mar 2000) |
| pars lateralis arcus pedis longitudinalis | lateral part of longitudinal arch of foot |