Inferior cardiac branches of the vagus nerve
Inferior Cardiac Branches of the Vagus Nerve
The Inferior Cardiac Branches of the Vagus Nerve are a group of nerve fibers that originate from the vagus nerve and provide parasympathetic innervation to the heart. These branches play a crucial role in the regulation of heart rate and cardiac function.
Anatomy[edit | edit source]
The inferior cardiac branches arise from the vagus nerve at the lower part of the neck. They descend along the esophagus and form a network of nerves known as the cardiac plexus. The branches then continue to the heart, where they provide parasympathetic innervation.
Function[edit | edit source]
The inferior cardiac branches of the vagus nerve are responsible for slowing the heart rate. They release acetylcholine, a neurotransmitter that reduces the rate of spontaneous depolarization in the heart's pacemaker cells, thereby slowing the heart rate.
Clinical Significance[edit | edit source]
Damage to the inferior cardiac branches of the vagus nerve can lead to a condition known as tachycardia, where the heart rate is abnormally high. This can result in symptoms such as shortness of breath, chest pain, and fainting.
See Also[edit | edit source]
References[edit | edit source]
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