| blepharoptosis | Drooping of the upper eyelid. Causes include aging, diabetes, stroke, Horner's syndrome, myasthenia gravis, brain tumour or cancer. (27 Sep 1997) |
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| radix sympathica ganglii ciliaris | Postganglionic fibres,having cell bodies in the superior cervical ganglion, branching from the carotid plexus passing through the ciliary ganglion without synapse to reach the eyeball. Synonym: radix sympathica ganglii ciliaris. (05 Mar 2000) |
| pars sympathica | <anatomy, physiology> One of the two divisions of the vertebrate autonomic nervous system (the other being the parasympathetic nervous system). The sympathetic preganglionic neurons have their cell bodies in the thoracic and lumbar regions of the spinal cord and connect to the paravertebral chain of sympathetic ganglia. Innervate heart and blood vessels, sweat glands, viscera and the adrenal medulla. most sympathetic neurons, but not all, use noradrenaline as a post ganglionic neurotransmitter. (19 Jan 1998) |
| false blepharoptosis | A condition resembling an inability to elevate the eyelid, due to blepharophimosis, blepharochalasis, or some other affection. Synonym: false blepharoptosis. Origin: pseudo-+ G. Ptosis, a falling (05 Mar 2000) |
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