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The vagus nerve, the longest nerve in the body, originates in the brainstem and extends down into the abdomen. It monitors and receives information about the functioning of the heart, lungs,...
- The Essential Vagus Nerve
The vagus nerve is a cranial nerve that is the longest...
- The Essential Vagus Nerve
- Definition
- Vagus Nerve Function
- Vagus Nerve Stimulation
- Vagus Nerve Damage
- Vagus Nerve Disorders
The vagus nerve is a mixed sensory and motor nerve with many functions that include immune response, heart rate, digestion, and mood control. As the longest of the cranial nerves, cranial nerve number ten (CN X) travels from the brain to the abdomen, also innervating parts of the face, throat, and thorax, and acting as a sensory, special sensory an...
Vagus nerve function is split into four groups according to the type of nerve fiber: sensory, special sensory, motor, and parasympathetic. Although primarily an afferent nerve that brings sensory information from the body to the brain, the vagus nerve is also an efferent (motor) nerve that brings messages from the brain to muscle. Smooth muscle con...
Vagus nerve stimulation is nothing new; vagal maneuvers have been used for centuries to lower the heart rate and induce a sense of relaxation. The ancient Greeks called the carotid artery the ‘site of sleep’ as – unbeknown to them – massage to this area stimulates the vagus nerve that lies alongside the much more visible and palpable artery. Massag...
Vagus nerve damage leads to many different symptoms, as this is a long nerve that branches off to various parts of the body. The word ‘vagus’ means wandering in Latin and this name gives us an indication of the nerve’s many pathways. Damage to the cranial part of the vagus nerve can be caused by brain trauma, infection (encephalitis), the aging pro...
Vagus nerve disorders are usually the result of lesions or disease and much less commonly a disorder only of the vagus nerve. Tests for vagal damage range from evaluating the swallowing reflex to looking at stomach emptying using computed tomography – a CT scan. An endocrinologist might look more closely at glandular dysfunction associated with vag...
The vagus nerve is a sort of polymath of the parasympathetic nervous system, getting involved in everything from breathing, heart rate, swallowing, sneezing, digestion, appetite, immune responses and even orgasm. The vagus nerve’s wide-ranging skill set comes from having a diverse array of neuron cell types at its disposal.
Oct 15, 2024 · The vagus nerve is the 10th cranial nerve (cranial nerve X, or CN X) and the longest of all cranial nerves, originating in the medulla oblongata of the brainstem and extending into the gut region (1). It contains two main ganglia (superior and inferior), also known as the jugular and nodose ganglia, respectively (Figure 1).
Mar 30, 2023 · The vagus nerve is a cranial nerve that is the longest cranial nerve of the body. It is a major conduit of the autonomic nervous system, and it is extremely powerful, branching off to...
Oct 6, 2024 · The vagus nerve runs from the brain through the face and thorax to the abdomen. It is a mixed nerve that contains parasympathetic fibers and has the most extensive distribution of the cranial nerves. Learn more about the vague nerve in this article.
Oct 30, 2023 · The vagus nerve, or the 10th cranial nerve (CN X), is primarily associated with the parasympathetic division of the autonomic nervous system, however, it also has some sympathetic influence through peripheral chemoreceptors. The vagus nerve is a mixed nerve, as it contains both afferent (sensory) and efferent (motor) fibers.
