THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Vagus nerve (X): A mixed nerve. The sensory fibers of this nerve carry impulses from the pharynx, larynx, and most internal organs to the brain. The motor fibers of this nerve carry impulses to internal organs of the chest and abdomen and to the skeletal muscles of the larynx and pharynx.

Detailed explanation-2: -As stated above, the glossopharyngeal nerve provides motor innervation to the stylopharyngeus muscle, which is responsible for elevating the pharynx and larynx.

Detailed explanation-3: -The vagus nerve is responsible for the regulation of internal organ functions, such as digestion, heart rate, and respiratory rate, as well as vasomotor activity, and certain reflex actions, such as coughing, sneezing, swallowing, and vomiting (17).

Detailed explanation-4: -Where is the vagus nerve? Your vagus nerves are the longest cranial nerve, running from your brain to your large intestine. Your left vagus nerve travels down the left side of your body. The right vagus nerve travels down the right side of your body.