Sclera in lobe-finned fishes, various reptiles, and birds. The ring has disappeared in many groups, including living amphibians, some reptiles and fish, and all mammals. The eyes of all non-human primates are dark with small, barely visible sclera. The collagen of the sclera is continuous with the cornea. From outer to innermost, the four layers of the sclera are: The sclera is opaque due to the irregularity of the Type I collagen fibers, as opposed to the near-uniform thickness and parallel arrangement of the corneal collagen. Moreover, the cornea bears more mucopolysaccharide (a carbohydrate that has among its repeating units a
Catholic theology of the body the consequence according to Didymus. He compares this with wine being mixed with water. The body has some functions for the soul. The body informs the soul of the sensual world around them. Didymus called the body the outer person and the soul the inner person. The outer person is perishable. The inner person is eternal. The heart of the person leads the person as a whole towards good or bad deeds. Didymus maintains freedom of will, which is however weakened through the fall of Adam of Eve. A person who uses his free will to be a spiritual person,