Noun. 1. mucosa-mucus-secreting membrane lining all body cavities or passages that communicate with the exterior. mucous membrane. conjunctiva-a transparent lubricating mucous membrane that covers the eyeball and the under surface of the eyelid.oun. 1. mucosa-mucus-secreting membrane lining all body cavities or passages that communicate with the exterior. mucous membrane. conjunctiva-a transparent lubricating mucous membrane that covers the eyeball and the under surface of the eyelid.
Relations vs Functions. In mathematics, relations and functions include the relation between two objects in a certain order. Both are different. Take, for instance, a function. A function is linked with a single quantity. It is also associated with the argument of the function, input, and value of the function, or otherwise known as the input.
Functions versus Relations (page 1 of 2). Sections: Functions versus relations, Domain and range. There are different ways of looking at functions. We will consider a few. But first, we need to discuss some terminology. A relation is just a relationship between sets of information. Think of all the people in one of your classes, and think of their heights. The pairing of names and heights is a relation. In relations and functions, the pairs of names and heights are ordered, which means one comes first and the other comes second.