| elastic layers of cornea | See: anterior limiting layer of cornea, posterior limiting layer of cornea. (05 Mar 2000) |
|---|---|
| epithelial layers | See: epithelium. (05 Mar 2000) |
| layers of retina | Light sensitive layer of the eye. In vertebrates, looking from outside, there are four major cell layers: (i) the outer neural retina, which contains neurons (ganglion cells, amacrine cells, bipolar cells) as well as blood vessels, (ii) the photoreceptor layer, a single layer of rods and cones, (iii) the pigmented retinal epithelium (PRE or RPE), (iv) the choroid, composed of connective tissue, fibroblasts and including a well vascularised layer, the chorio capillaris, underlying the basal lamina of the PRE. Behind the choroid is the sclera, a thick organ capsule. In molluscs (especially cephalopods such as the squid) the retina has the light sensitive cells as the outer layer with the neural and supporting tissues below. See: retinal rods, retinal cones, rhodopsin. (18 Nov 1997) |
| layers of skin | See: epidermis, dermis. (05 Mar 2000) |
| limiting layers of cornea | anterior limiting layer of cornea, posterior limiting layer of cornea |
| longitudinal layers of muscular tunics | See: longitudinal layer of muscular coat. (05 Mar 2000) |
| anterior cerebellar notch | A wide, shallow notch on the anterior surface of the cerebellum occupied laterally by the superior cerebellar peduncles and the inferior quadrigeminal bodies medially. Synonym: anterior notch of cerebellum, incisura cerebelli anterior, semilunar notch. (05 Mar 2000) |
| anterior inferior cerebellar artery | <anatomy, artery> Origin, basilar; distribution, lower surface of lateral lobes of cerebellum, choroid plexus in cerebellopontine angle; anastomoses, posterior inferior cerebellar; usual source of labyrinthine artery. Synonym: arteria cerebelli inferior anterior. (05 Mar 2000) |
| cerebellar | <anatomy> Pertaining to the cerebellum. (18 Nov 1997) |
| cerebellar arteries | An artery related to and supplying the cerebellum. See: anterior inferior cerebellar artery, posterior inferior cerebellar artery, superior cerebellar artery. (05 Mar 2000) |
| cerebellar astrocytoma | <oncology, tumour> This primary brain tumour of the cerebellum accounts for 10 to 30% of brain tumours in children. The are usually slow growing and benign. Symptoms include gait problems, clumsiness, headache and vomiting. Treatment often involves a combination of surgery, radiation therapy and chemotherapy. (27 Sep 1997) |
| cerebellar ataxia | Loss of muscle coordination caused by disorders of the cerebellum. (05 Mar 2000) |
| cerebellar atrophy | A degeneration of the cerebellum, particularly the Purkinje cells, as the result of abiotrophy or of toxic agents, as in alcoholism. (05 Mar 2000) |
| cerebellar cyst | A cyst usually occurring in the lateral cerebellar white matter; often a part of cerebellar astrocytoma. (05 Mar 2000) |
| cerebellar dyssynergia | <neurology> A condition marked by generalised intention tremors associated with disturbance of muscle tone and of muscular coordination, caused by a disorder of cerebellar function. (12 Dec 1998) |