Nerve X, Vagus
The Vagus Nerve
The vagus nerve (cranial nerve X) slows the heart and increases motility of the digestive tract. It is part of the parasympathetic nervous system which is a branch of the autonomic nervous system.
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The vagus nerve (cranial nerve X) is responsible for slowing the heart rate (parasympathetic control) and accelerating peristalsis in the gastrointestinal tract.
Optic nerve
vagus
CN X (Vagus)
The Olfactory nerve. CN1 Cranial Nerve I, or the first cranial nerve called the Olfactory nerve.
Vagus nerve; excessive stimulation causes bradycardia.
The vagus nerve is the 10th cranial nerve, also known as cranial nerve X.
The heart is primarily innervated by the autonomic nervous system, specifically through the vagus nerve, which is cranial nerve X. The vagus nerve provides parasympathetic innervation, helping to regulate heart rate and promote a state of rest and digest. Additionally, sympathetic innervation to the heart comes from the sympathetic chain ganglia, but the vagus nerve plays a crucial role in controlling heart function.
Smell impulses are carried by the cranial nerve called the olfactory nerve (cranial nerve I). It is responsible for transmitting information about odors from the nose to the brain.