MRCP UK EXAMINATIONS

Detailed explanation-1: -The vagus nerve (cranial nerve [CN] X) is the longest cranial nerve in the body, containing both motor and sensory functions in both the afferent and efferent regards.

Detailed explanation-2: -The vagus nerves are the 10th of 12 cranial nerves. The vagus is known as cranial nerve X, the Roman numeral for 10.

Detailed explanation-3: -The name “vagus” comes from the Latin term for “wandering.” This is because the vagus nerve wanders from the brain into organs in the neck, chest, and abdomen. It is also known as the 10th cranial nerve or cranial nerve X.

Detailed explanation-4: -The vagus nerve innervates the crural area of the diaphragm (where the esophagus passes or esophageal hiatus).

Detailed explanation-5: -The vagus nerve, also known as the tenth cranial nerve, cranial nerve X, or simply CN X, is a cranial nerve that carries sensory fibers that create a pathway that interfaces with the parasympathetic control of the heart, lungs, and digestive tract.