2023年10月30日 · The main trunk of the nerve is bound medially by the trachea and esophagus and laterally by the common carotid artery, the internal jugular vein and the vagus nerve. The right nerve branches from the vagus nerve at the base of the neck, travels under the subclavian artery, and then courses upwards in the tracheoesophageal groove and enters the ...

It comprises two nerves—the left and right vagus nerves, each containing about 100,000 fibres—but they are typically referred to collectively as a single subsystem. The vagus is the longest nerve of the autonomic nervous system in the human body and comprises both sensory and motor fibers.

2025年2月13日 · The vagus nerve provides parasympathetic innervation to the majority of the abdominal organs. It sends branches to the oesophagus, stomach and most of the intestinal tract – up to the splenic flexure of the large colon. The function of the vagus nerve is to stimulate smooth muscle contraction and glandular secretions in these organs.

2022年1月11日 · What is the Vagus Nerve? The vagus nerve, also known as the vagal nerves, are the main nerves of your parasympathetic nervous system. This system controls specific body functions such as your digestion, heart rate and immune system. These functions are involuntary, meaning you can’t consciously control them.

2022年11月7日 · There are 4 branches of the vagus nerve within the neck: pharyngeal branches, the superior laryngeal nerve, the recurrent laryngeal nerve, and the superior cardiac nerve (see Image. Neck Anatomy). [6] Pharyngeal branches. The pharyngeal nerve branches arise from the inferior ganglion of CN X, which contains both sensory and motor fibers.

2025年1月20日 · Branches: Numerous branches emanate from the vagus nerve, including the pharyngeal nerve, superior laryngeal nerve, recurrent laryngeal nerve, and several visceral branches that innervate organs like the heart, lungs, and gastrointestinal tract.

2024年4月15日 · It is divided into two main branches, the left and right vagus nerves, which innervate different areas of the body. The left vagus nerve primarily controls the heart, while the right vagus nerve mainly innervates the organs in the chest and abdomen. As a mixed nerve, the vagus nerve has both sensory and motor functions.

2015年1月1日 · Originating in the medulla, the vagus nerve innervates structures in the neck, thorax, and abdomen and has influence over cardiac and digestive functions. As the vagus nerve travels from the brain stem to the abdomen, it gives off many branches. Two branches of great importance are the superior and recurrent laryngeal nerves.

2019年4月12日 · An overview of the anatomy of the vagus nerve, including its course, branches (e.g. recurrent laryngeal nerve), function and clinical relevance.

2015年1月1日 · Originating in the medulla, the vagus nerve innervates structures in the neck, thorax, and abdomen and has influence over cardiac and digestive functions. As the vagus nerve travels from the brain stem to the abdomen, it gives off many branches. Two branches of great importance are the superior and recurrent laryngeal nerves.