Corneal ulcers are most commonly caused by an infection with bacteria, viruses, fungi, or a parasite. 1  Acanthamoeba keratitis occurs in contact lens users. It is more likely to happen in people who make their own homemade cleaning solutions.  Fungal keratitis can occur after a corneal injury involving plant material.
S IECUSâthe Sexuality Information and Education Council of the United States was founded in 1964 to provide education and information about sexuality and sexual and reproductive health. SIECUS affirms that sexuality is a fundamental part of being human, one that is worthy of dignity and respect.IECUS works to create a world that ensures social justice and sexual rights.
(1) The space separating the two cerebral hemispheres is called the longitudinal fissure. The shallow grooves in the surface of the cerebrum are called sulci (sulcus, singular). The ridges outlined by the sulci are known as gyri (gyrus, singular).