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.
Congenital hernia Contributor(s): Rachel Burrow, Jacqueline Davidson. Introduction; Pathogenesis; Diagnosis; Treatment; Prevention; Outcomes; Introduction. A congenital hernia is a defect in the abdominal wall or diaphragm that is present at birth. Abdominal organs or other abdominal tissue may displace through the defect. A true hernia has a hernia sac (peritoneum) surrounding the contents. A true hernia is usually the result of a congenital weakness in the abdominal wall. True hernias are often reducible (ie contents can move freely between hernia sac and abdomen), because the hernia sac reduces adhesion formation. A false hernia has no hernia sac and is usually acquired from trauma or previous surgery.