Human eye layer, known as the fibrous tunic, is composed of the cornea and sclera. The middle layer, known as the vascular tunic or uvea, consists of the choroid, ciliary body, pigmented epithelium and iris. The innermost is the retina, which gets its oxygenation from the blood vessels of the choroid (posteriorly) as well as the retinal vessels (anteriorly). The spaces of the eye are filled with the aqueous humour anteriorly, between the cornea and lens, and the vitreous body, a jelly-like substance, behind the lens, filling the entire posterior cavity. The aqueous humour is a clear watery fluid that is contained
Love Is Just a Four-Letter Word Love Is Just a Four-Letter Word "Love is Just a Four-Letter Word" is a song written by Bob Dylan, and long associated with Joan Baez, who has recorded it numerous times, and performed it throughout her career. Baez immediately took to the song, which was written by Dylan sometime around 1965, and began performing it, even before it was finished. In the film "Dont Look Back", a documentary of Dylan's 1965 tour of the UK, Baez is shown in one scene singing a fragment of the then apparently still unfinished song in a hotel room late at night. She then