| septum lucidum | A thin plate of brain tissue, containing nerve cells and numerous nerve fibres, that is stretched like a flat, vertical sheet between the column and body of fornix below, the corpus callosum above and anteriorly; it is usually fused in the median plane with its partner on the opposite side so as to form a thin, median partition between the left and right frontal horn of the lateral ventricles; in less than 10% of humans there is a blind, slitlike, fluid-filled space between the two transparent septa, the cavity of septum pellucidum. The transparent septum is continuous ventralward through the interval between the corpus callosum and the anterior commissure with the precommissural septum and subcallosal gyrus. See: cavity of septum pellucidum, septal area. Synonym: septum pellucidum, septum lucidum. (05 Mar 2000) |
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| stratum lucidum | A layer of lightly staining corneocytes in the deepest level of the stratum corneum; found primarily in the thick epidermis of the palmar and plantar skin. Synonym: clear layer of epidermis. (05 Mar 2000) |
| tapetum | 1. <cell biology> Layer of reflective tissue just behind the pigmented retinal epithelium of many vertebrate eyes. May consist either of a layer of guanine crystals or a layer of connective tissue. In bovine eyes reflects a blue green iridescent colour. 2. <plant biology> Layer of cells in the sporangium of a vascular plant that nourishes the developing spores. (18 Nov 1997) |
| tapetum alveoli | <anatomy> Fibrous connective tissue surrounding the root of a tooth that separates it from and attaches it to the alveolar bone. (12 Dec 1998) |
| tapetum nigrum | The outer layer of the retina, consisting of pigmented epithelium. Synonym: ectoretina, stratum pigmenti bulbi, stratum pigmenti retinae, tapetum nigrum, tapetum oculi. (05 Mar 2000) |
| tapetum oculi | The outer layer of the retina, consisting of pigmented epithelium. Synonym: ectoretina, stratum pigmenti bulbi, stratum pigmenti retinae, tapetum nigrum, tapetum oculi. (05 Mar 2000) |
| tapetum lucidum |
The tapetum lucidum (Latin: "bright carpet") or tapetum is a reflecting layer behind the retina of the eye; it serves to reflect light back to the retina, increasing the quantity of light caught by the retina. This improves vision in low light conditions but can cause the perceived image to be blurry from the interference of the reflected light. It is found in many animals, particularly nocturnal animals with good night vision, such as cats. ...
Ãâó: en.wikipedia.org/wiki/Tapetum_lucidum
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| tapetum lucidum |
mirror-like layer in the back of the cat's eye that gives the "glow-in-the-dark" effect to the eye
Ãâó: members.lycos.co.uk/furbabies/glossary5.html
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| tapetum lucidum |
The thin membrane behind the retina of a nocturnal animal
Ãâó: www.natureshift.org/rangerR/glossary.html
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| tapetum lucidum |
The reflective layer at the back of a cat's eye.
Ãâó: www.flippyscatpage.com/glossary.html
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| tapetum lucidum |
A mechanism behind the retina that reflects light back increasing the intensity of the image.
Ãâó: www.elasmodiver.com/Elasmodiver%20Glossary.htm
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