| Kursteiner's canals | A foetal complex of vesicular, canalicular, and glandlike structures derived from parathyroid, thymus, or thymic cord; they are rudimentary and functionless unless persistent postnatally, when they may occur as cystic structures in the vicinity of parathyroid III and thymus III. Kursteiner described three types, type II canal's being associated with thyroaplasia. (05 Mar 2000) |
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| lateral saemicircular canals | The three bony tubes in the labyrinth of the ear within which the membranous saemicircular ducts are located; they lie in planes at right angles to each other and are known as anterior saemicircular canal, posterior saemicircular canal, and lateral saemicircular canal. Synonym: canales saemicirculares ossei. (05 Mar 2000) |
| Leeuwenhoek's canals | <anatomy> The small Vascular canal's that run longitudinally in the centre of haversian systems of compact osseous tissue, through which the blood vessels ramify in bone. Synonym: Leeuwenhoek's canals. (05 Mar 2000) |
| limbs of bony saemicircular canals | The extremities of the bony saemicircular canals in which the corresponding membranous limbs of the saemicircular ducts are located; they are the common bony crus, simple bony crus, and ampullary bony crus. Synonym: crura ossea canalium saemicircularium, limbs of bony saemicircular canals. (05 Mar 2000) |
| longitudinal canals of modiolus | Centrally placed channels that convey vessels and nerves to the apical turns of the cochlea. Synonym: canales longitudinales modioli, central canals of cochlea. (05 Mar 2000) |
| anterior ciliary artery | <anatomy, artery> One of several arteries derived from muscular branches of the ophthalmic which perforate the anterior part of the sclera and anastomose with posterior ciliary arteries. Synonym: arteria ciliaris anterior. (05 Mar 2000) |
| basal lamina of ciliary body | The inner layer of the ciliary body, continuous with the basal layer of the choroid and supporting the pigment epithelium of the ciliary retina. Synonym: lamina basalis corporis ciliaris, basal layer of ciliary body. (05 Mar 2000) |
| basal layer of ciliary body | The inner layer of the ciliary body, continuous with the basal layer of the choroid and supporting the pigment epithelium of the ciliary retina. Synonym: lamina basalis corporis ciliaris, basal layer of ciliary body. (05 Mar 2000) |
| malignant ciliary epithelioma | <tumour> Malignant hyperplasia of ciliary epithelium with frequent involvement of the pigmented layer. Synonym: adult medulloepithelioma. (05 Mar 2000) |
| parasympathetic root of ciliary ganglion | A branch of the oculomotor nerve supplying parasympathetic preganglionic nerve fibres to the ciliary ganglion. Synonym: radix parasympathica ganglii ciliaris, radix oculomotoria ganglii ciliaris, motor root of ciliary ganglion, oculomotor root of ciliary ganglion, radix brevis ganglii ciliaris, short root of ciliary ganglion. (05 Mar 2000) |
| ciliary | 1. Relating to any cilia or hairlike processes, specifically, the eyelashes. 2. Relating to certain of the structures of the eyeball. Origin: Mod. L. Ciliaris, relating to or resembling an eyelid, or eyelash, fr. L. Cilium, eyelid (05 Mar 2000) |
| ciliary arteries | Arteries supplying the iris, conjunctiva, choroid, and ciliary body. The anterior ciliary arteries originate in the ophthalmic and lacrimal arteries and supply the iris and conjunctiva; the short posterior ciliary arteries originate in the ophthalmic artery and supply the choroid; the long posterior ciliary arteries originate in the ophthalmic artery and supply the iris and ciliary process. (12 Dec 1998) |
| ciliary blepharitis | Inflammation of the margins of the eyelids. Synonym: ciliary blepharitis, marginal blepharitis. Meibomian blepharitis, inflammation of the eyelid margin and the meibomian glands. (05 Mar 2000) |
| ciliary body | <anatomy> Tissue that includes the group of muscles that act on the eye lens to produce accommodation and the arterial circle of the iris. The inner ciliary epithelium is continuous with the pigmented retinal epithelium, the outer ciliary epithelium secretes the aqueous humour. (18 Nov 1997) |
| ciliary border of iris | The peripheral border of the iris attached to the ciliary body. Synonym: margo ciliaris iridis, ciliary margin of iris. (05 Mar 2000) |