| 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 |
| SO | Stratum opticum |
|---|
| 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) |
|---|
| stratum opticum | A layer of white matter interspersed with nerve-cell bodies, immediately below the superficial gray layer of the superior colliculus, composed of myelinated fibres originating in the retina and striate cortex, the inner layer of the retina, consisting of the fibres originating from the cells of the ganglionic layer of optic nerve; in their further course these fibres combine to form the optic nerve or optic tract. Synonym: stratum opticum. (05 Mar 2000) |
|---|---|
| foramen opticum | The short canal through the lesser wing of the sphenoid bone at the apex of the orbit that gives passage to the optic nerve and the ophthalmic artery. Synonym: canalis opticus, foramen opticum, optic foramen. (05 Mar 2000) |
| 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) |
| 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) |
| chiasma opticum | the crossing of the optic nerves from the two eyes at the base of the brain |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|