The cartilages are placed horizontally above each other, separated by narrow intervals. They measure about 4 mm in depth and 1 mm in thickness. Their outer surfaces are flattened in a vertical direction, but the internal are convex, the cartilages being thicker in the middle than at the margins.
A synthetic analog is a: synthetically created compound that differs from the Natural compound. Both in it's structure and function. Although probably very similar to the original compound.
Analogue, or analogous, means that the drug is comparable, or similar, to prostaglandin, but has a slightly different chemical composition. Thus, prostaglandin analogues (PGAs) are drugs that are used in the treatment of open-angle glaucoma or ocular hypertension. At specific dosages, they lower intraocular pressure by increasing the outflow of aqueous humor from the eye. Some of the more common PGAs include. 1  Travatan (generic name: travoprost).