In ancient times, a ring was used to seal a promise, much in the same way rings of different types are used to symbolize promises today. Bishops would wear rings to symbolize their spiritual âmarriageâ or union with the church.
What is Extina? Extina (ketoconazole) is an antifungal medication that prevents fungus from growing on your skin. Extina Foam is used on the skin (topical) to treat a skin condition called seborrheic dermatitis in patients 12 years of age and older. Seborrheic dermatitis can cause areas of flaky skin (scales) on the scalp, face, ears, chest or upper back.
annulus of Zinn. A ring of fibrous tissue behind the eye that surrounds the optic nerve and the ophthalmic artery and vein. It consists of the origins of five of the extraocular muscles: the superior oblique, and the inferior, lateral, medial, and superior rectus muscles.