| C1 | first cervical nerve; first cervical vertebra; first component of complement |
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| CI | first cranial nerve |
| C2 | second cervical nerve; second cervical vertebra; second component of complement |
| CII | second cranial nerve |
| C3 | third cervical nerve; third cervical vertebra; third component of complement |
| part | 1. To be broken or divided into parts or pieces; to break; to become separated; to go asunder; as, rope parts; his hair parts in the middle. 2. To go away; to depart; to take leave; to quit each other; hence, to die; often with from. "He wrung Bassanio's hand, and so they parted." (Shak) "He owned that he had parted from the duke only a few hours before." (Macaulay) "His precious bag, which he would by no means part from." (G. Eliot) 3. To perform an act of parting; to relinquish a connection of any kind; followed by with or from. "Celia, for thy sake, I part With all that grew so near my heart." (Waller) "Powerful hands . . . Will not part Easily from possession won with arms." (Milton) "It was strange to him that a father should feel no tenderness at parting with an only son." (A. Trollope) 4. To have a part or share; to partake. "They shall part alike." 1. One of the portions, equal or unequal, into which anything is divided, or regarded as divided; something less than a whole; a number, quantity, mass, or the like, regarded as going to make up, with others, a larger number, quantity, mass, etc, whether actually separate or not; a piece; a fragment; a fraction; a division; a member; a constituent. "And kept back part of the price, . . . And brought a certain part and laid it at the apostles'feet." (Acts v. 2) "Our ideas of extension and number do they not contain a secret relation of the parts ?" (Locke) "I am a part of all that I have met." (Tennyson) 2. Hence, specifically: An equal constituent portion; one of several or many like quantities, numbers, etc, into which anything is divided, or of which it is composed; proportional division or ingredient. "An homer is the tenth part of an ephah." (Ex. Xvi. 36) "A thought which, quartered, hath but one part wisdom, And ever three parts coward." (Shak) A constituent portion of a living or spiritual whole; a member; an organ; an essential element. "All the parts were formed . . . Into one harmonious body." (Locke) "The pulse, the glow of every part." (Keble) A constituent of character or capacity; quality; faculty; talent; usually in the plural with a collective sense. "Men of considerable parts." . "Great quickness of parts." . "Which maintained so politic a state of evil, that they will not admit any good part to intermingle with them." (Shak) Quarter; region; district; usually in the plural. "The uttermost part of the heaven." . "All parts resound with tumults, plaints, and fears. <mathematics> " (Dryden) Such portion of any quantity, as when taken a certain number of times, will exactly make that quantity; as, 3 is a part of 12; the opposite of multiple. Also, a line or other element of a geometrical figure. 3. That which belongs to one, or which is assumed by one, or which falls to one, in a division or apportionment; share; portion; lot; interest; concern; duty; office. "We have no part in David." (2 Sam. Xx. 1) "Accuse not Nature! she hath done her part; Do thou but thine." (Milton) "Let me bear My part of danger with an equal share." (Dryden) 4. Hence, specifically: One of the opposing parties or sides in a conflict or a controversy; a faction. "For he that is not against us is on our part." (Mark ix. 40) "Make whole kingdoms take her brother's part." (Waller) A particular character in a drama or a play; an assumed personification; also, the language, actions, and influence of a character or an actor in a play; or, figuratively, in real life. See To act a part, under Act. "That part Was aptly fitted and naturally performed." (Shak) "It was a brute part of him to kill so capital a calf." (Shak) "Honor and shame from no condition rise; Act well your part, there all the honor lies." (Pope) One of the different melodies of a concerted composition, which heard in union compose its harmony; also, the music for each voice or instrument; as, the treble, tenor, or bass part; the violin part, etc. For my part, so far as concerns me; for my share. For the most part. See Most, In good part, as well done; favorably; acceptably; in a friendly manner. In ill part, unfavorably; with displeasure. In part, in some degree; partly. Part and parcel, an essential or constituent portion; a reduplicative phrase. Cf. Might and main, kith and kin, etc. "She was . . . Part and parcel of the race and place." . Part of speech, one of several owners or tenants in common. See Joint tenant. Part singing, singing in which two or more of the harmonic parts are taken. Part song, a song in two or more (commonly four) distinct vocal parts. "A part song differs from a madrigal in its exclusion of contrapuntual devices; from a glee, in its being sung by many voices, instead of by one only, to each part." . Synonym: Portion, section, division, fraction, fragment, piece, share, constituent. See Portion, and Section. Origin: F. Part, L. Pars, gen. Partis; cf. Parere to bring forth, produce. Cf. Parent, Depart, Parcel, Partner, Party, Portion. Source: Websters Dictionary (01 Mar 1998) |
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| cavernous part of internal carotid artery | <anatomy, artery> The tortuous portion of the internal carotid artery located within the cavernous sinus; it has numerous small branches. Synonym: pars cavernosa arteriae carotidis internae. (05 Mar 2000) |
| medial crus of the horizontal part of the facial canal | Medially-placed, anteriorly-directed first portion of the horizontal part of the facial canal. See: horizontal part of facial canal. Synonym: medial crus of the horizontal part of the facial canal. (05 Mar 2000) |
| medial part of longitudinal arch of foot | medial part of longitudinal arch of foot |
| medial part of posterior cervical intertransversarii muscles | medial part of posterior cervical intertransversarii muscles |
| glossopharyngeal part of superior pharyngeal constrictor | See: superior constrictor muscle of pharynx. Synonym: pars glossopharyngea musculi constrictoris pharyngis superioris. (05 Mar 2000) |
| mediastinal part of lung | The part of the medial surface of a lung in contact with the mediastinum. Synonym: pars mediastinalis pulmonis, facies mediastinalis pulmonis, mediastinal part of lung. (05 Mar 2000) |
| medicare part a | The Medicare program that covers inpatient hospital stays. (12 Dec 1998) |
| medicare part b | The Medicare program that covers physician and outpatient services. (12 Dec 1998) |
| pelvic part of ureter | The part of the ureter between the brim of the pelvis and the urinary bladder; the upper pelvic portion of the embryologic urogenital sinus. Synonym: pars pelvina ureteris. (05 Mar 2000) |
| ceratopharyngeal part of middle pharyngeal constrictor | See: middle constrictor muscle of pharynx. Synonym: pars ceratopharyngea musculi constrictoris pharyngis medii. (05 Mar 2000) |
| cerebral part of arachnoid | That portion of the arachnoid which lies within the cranial cavity and surrounds the brain and the cranial portion of the subarachnoid space. In several sites it is relatively widely-separated from the pia mater, creating the cranial subarachnoid cisterns. Synonym: arachnoid mater cranialis, arachnoid mater encephali, cerebral part of arachnoid. (05 Mar 2000) |
| cerebral part of dura mater | The intracranial dura mater, consisting of two layers: the outer periosteal layer which normally always adheres to the periosteum of the bones of the cranial vault; and the inner meningeal layer which in most places is fused with the outer. The two layers separate to accommodate meningeal vessels and large venous (dural) sinuses. The meningeal layer is also involved in the formation of the various dural folds, such as the falx cerebri and tentorium cerebelli and is comparable to and continuous with the dural mater of the spinal cord. The cranial epidural space is then a potential space between the bone and the combined periosteum/periosteal layer of the dura mater realised only pathologically and is neither continuous with or comparable to the vertebral epidural space. Synonym: dura mater cranialis, dura mater encephali, cerebral part of dura mater, cranial epidural space. (05 Mar 2000) |
| cerebral part of internal carotid artery | <anatomy, artery> The portion of the internal carotid artery that supplies the brain; its branches are: superior hypophyseal, clival, ophthalmic, anterior choroidal, anterior cerebral, and middle cerebral. Synonym: pars cerebralis arteriae carotidis internae. (05 Mar 2000) |
| cervical part of internal carotid artery | <anatomy, artery> The unbranched portion located in the neck. Synonym: pars cervicalis arteriae carotidis internae. (05 Mar 2000) |