The trigeminal nerve, CN V, is the fifth paired cranial nerve. It is also the largest cranial nerve. In this article, we shall look at the anatomical course of the nerve, and the motor, sensory and parasympathetic functions of its terminal branches.he trigeminal nerve, CN V, is the fifth paired cranial nerve. It is also the largest cranial nerve. In this article, we shall look at the anatomical course of the nerve, and the motor, sensory and parasympathetic functions of its terminal branches.
Acquired deafness contrasts to congenital deafness which is present at birth. The distinction between acquired and congenital deafness specifies only the time that the deafness appears. It does not specify whether the cause of the deafness is genetic (inherited). Acquired deafness may or may not be genetic. For example, it may be a manifestation of a delayed-onset form of genetic deafness.
The word congenital means existing at birth. The terms congenital heart defect and congenital heart disease are often used to mean the same thing, but defect is more accurate. The heart ailment is a defect or abnormality, not a disease. A defect results when the heart or blood vessels near the heart don't develop normally before birth. Working with your healthcare team, learn about the different types of congenital heart defects, treatments and tests.