A patent is a right granted to the owner of an invention that prevents others from making, using, importing or selling the invention without his permission.A patentable invention can be a product or a process that gives a new technical solution to a problem. patent is a right granted to the owner of an invention that prevents others from making, using, importing or selling the invention without his permission.
macula sacÂ´culi a thickening on the wall of the saccule where the epithelium contains hair cells that receive and transmit vestibular impulses. macula utriÂ´culi a thickening in the wall of the utricle where the epithelium contains hair cells that are stimulated by linear acceleration and deceleration and by gravity.
fovea centralis. The center of the macula is called the fovea centralis. It is about 1.5 mm in diamter and is area where all of the photoreceptors are cones; there are no rods in the fovea. The fovea is the point of sharpest, most acute visual acuity.The very center of the fovea is the foveola, with a diameter of only about .35 mm.hen only one type of cone receptor functions, the color deficiency is monochromatism. Very few people (about 3 in a million) have total color blindness or achromatopsia; they see things only in shades of white, gray and black.