| C2 | second cervical nerve; second cervical vertebra; second component of complement |
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| C3 | third cervical nerve; third cervical vertebra; third component of complement |
| C4 | fourth cervical nerve; fourth cervical vertebra; fourth component of complement |
| C5 | fifth cervical nerve; fifth cervical vertebra; fifth component of complement |
| C6 | sixth cervical nerve; sixth cervical vertebra; sixth component of complement |
| subseptate uterus | An incomplete uterus septus. Synonym: uterus subseptus. (05 Mar 2000) |
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| double-mouthed uterus | Septate uterus in which the cervix is divided into two by a septum. Synonym: double-mouthed uterus, uterus biforis. (05 Mar 2000) |
| duplex uterus | Any uterus with double lumen (u. Didelphys, uterus bicornis bicollis, or septate uterus). Synonym: uterus duplex. (05 Mar 2000) |
| incudiform uterus | Uterus bicornis in which the fundus between the two cornua is broad and flat. Synonym: triangular uterus, uterus incudiformis, uterus triangularis. (05 Mar 2000) |
| intestinal surface of uterus | The posterosuperior surface of the uterus with which loops of intestine come in contact. Synonym: facies intestinalis uteri. (05 Mar 2000) |
| inversion of the uterus | A turning of the uterus inside out, usually following childbirth. (05 Mar 2000) |
| involution of the uterus | The process of reduction of the uterus to its normal nonpregnant size and state following childbirth. (05 Mar 2000) |
| isthmus of uterus | An elongated constriction at the junction of the body and cervix of the uterus. Synonym: isthmus uteri, Guyon's isthmus, orificium internum uteri, os uteri internum, ostium uteri internum. (05 Mar 2000) |
| one-horned uterus | An obsolete term for unicorn uterus. (05 Mar 2000) |
| opening of uterus | The vaginal opening of the uterus. Synonym: ostium uteri, mouth of the womb, opening of uterus, orificium externum uteri, os uteri externum, ostium uteri externum. (05 Mar 2000) |
| triangular uterus | Uterus bicornis in which the fundus between the two cornua is broad and flat. Synonym: triangular uterus, uterus incudiformis, uterus triangularis. (05 Mar 2000) |
| external os of uterus | The vaginal opening of the uterus. Synonym: ostium uteri, mouth of the womb, opening of uterus, orificium externum uteri, os uteri externum, ostium uteri externum. (05 Mar 2000) |
| unicorn uterus | A uterus in which only one lateral half exists, the other half being undeveloped or absent. Synonym: uterus unicornis. (05 Mar 2000) |
| uterus | <anatomy> The hollow muscular organ in female mammals in which the fertilized ovum normally becomes embedded and in which the developing embryo and foetus is nourished. In the nongravid human, it is a pear shaped structure, about 3 inches in length, consisting of a body, fundus, isthmus and cervix. Its cavity opens into the vagina below and into the uterine tube on either side at the cornu. It is supported by direct attachment to the vagina and by indirect attachment to various other nearby pelvic structures. Synonym: metra. Origin: L., Gr. Hystera (18 Nov 1997) |
| uterus acollis | A uterus with atresia or absence of the cervix. (05 Mar 2000) |