| CH | case history; Chediak-Higashi [syndrome]; chiasma; Chinese hamster; chloral hydrate; cholesterol; Ch... |
|---|---|
| OC | obstetrical conjugate; occlusocervical; office call; on call; only child; optic chiasma; oral contra... |
| OX | optic chiasma; oxacillin; oxalate; oxide; orthopedic examination; oxytocin |
| Xa | chiasma |
| xma | chiasma |
| chiasma | <cell biology> Junction points between nonsister chromatids at the first diplotene of meiosis, the consequence of a crossing over event between maternal and paternally derived chromatids. A chiasma also serves a mechanical function and is essential for normal equatorial alignment at meiotic metaphase I in many species. Frequency of chiasmata is very variable between species. (05 Jan 1998) |
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| chiasma opticum | <anatomy> The anatomic point of crossing or decussation of the optic nerve fibres. most of the nerve fibres cross to the opposite side. (27 Sep 1997) |
| chiasma syndrome | <syndrome> A syndrome characterised by a bitemporal visual field defect and optic nerve atrophy due to a lesion in or about the chiasm. (05 Mar 2000) |
| chiasma tendinum | Crossing of the tendons, the passage of the tendons of the flexor digitorum profundus (flexor digitorum longus in the foot) through the interval left by the decussation of the fibres of the tendons of the flexor digitorum superficialis (flexor digitorum brevis in the foot). Synonym: chiasma tendinum, Camper's chiasm. (05 Mar 2000) |
| chiasmapexy | Surgical fixation of the optic chiasma. Origin: G. Chiasma, decussation, + pexis, fixation (05 Mar 2000) |
| chiasmatic | Relating to a chiasm. (05 Mar 2000) |
| chiasmatic cistern | A dilation of the subarachnoid space below and anterior to the optic chiasm. Synonym: cisterna chiasmatis, cistern of chiasm. (05 Mar 2000) |
| chiasmatic groove | The groove on the upper surface of the sphenoid bone running transversely between the optic canals bounded anteriorly by the sphenoidal limbus and posteriorly by the tuberculum sellae; forms in relationship to the optic chiasm. Synonym: sulcus prechiasmatis, chiasmatic sulcus, optic groove, prechiasmatic sulcus. (05 Mar 2000) |
| chiasmatic sulcus | The groove on the upper surface of the sphenoid bone running transversely between the optic canals bounded anteriorly by the sphenoidal limbus and posteriorly by the tuberculum sellae; forms in relationship to the optic chiasm. Synonym: sulcus prechiasmatis, chiasmatic sulcus, optic groove, prechiasmatic sulcus. (05 Mar 2000) |
| chiasma |
an intersection or crossing of two tracts in the form of the letter X
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| chiasmal |
of or relating to a chiasm
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| chiasmatic |
chiasmal: of or relating to a chiasm
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| chiasma |
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| chiasmatic |
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| chiasma | an intersection or crossing of two tracts in the form of the letter X |
|---|---|
| chiasma | the crossing of the optic nerves from the two eyes at the base of the brain |
| chiasma | (anatomy) of or relating to a chiasm |
| chiasma | (anatomy) of or relating to a chiasm |
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