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The retina (from Latin rete 'net'; pl. retinae or retinas) is the innermost, light-sensitive layer of tissue of the eye of most vertebrates and some molluscs.The optics of the eye create a focused two-dimensional image of the visual world on the retina, which then processes that image within the retina and sends nerve impulses along the optic nerve to the visual cortex to create visual perception.
General overview map illustrating how the sheets of the complete map fit together Detail from sheets 11 and 15, depicting the Louvre Palace. In 1734, Michel-Étienne Turgot, the chief of the municipality of Paris as provost of the city's merchants, decided to promote the reputation of Paris for Parisian, provincial and foreign elites by commissioning a new map of the city.
The main image in the set is File:Turgot map of Paris - Norman B. Leventhal Map Center.jpg. If you have a different image of similar quality, be sure to upload it using the proper free license tag , add it to a relevant article, and nominate it .
Epithelium or epithelial tissue is a thin, continuous, protective layer of cells with little extracellular matrix. An example is the epidermis, the outermost layer of the skin. Epithelial (mesothelial) tissues line the outer surfaces of many internal organs, the corresponding inner surfaces of body cavities, and the inner surfaces of blood vessels.
Histology of a synovial membrane. H&E stain. The synovial membrane is variable but often has two layers: [4] The outer layer, or subintima, can be of almost any type of connective tissue – fibrous (dense collagenous type), adipose (fatty; e.g. in intra-articular fat pads) or areolar (loose collagenous type).
A map showing the twelve original arrondissements in 1795. The surrounding grey area shows the size of Paris after the expansion in 1860. On 11 October 1795, Paris was divided into twelve arrondissements. They were numbered from west to east. The numbers 1–9 were on the Right Bank of the Seine. The numbers were 10–12 on the Left Bank.
[1] [2] [7] Tissue gingham is a type of plain-weave fabric that is lightweight and is characterized by its yarn-dyed construction. [8] Tissue fabric may be woven, knitted, or even nonwoven, and features a film-like layer. [9] Tissue faille is a type of lightweight dress material, which is produced using an acetate warp and rayon in the weft. At ...
The dermis is composed of three major types of cells: [3] fibroblasts, macrophages, and mast cells.. Apart from these cells, the dermis is also composed of matrix components such as collagen (which provides strength), elastin (which provides elasticity), and extrafibrillar matrix, an extracellular gel-like substance primarily composed of glycosaminoglycans (most notably hyaluronan ...