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The deep part of the cardiac plexus is situated in front of the bifurcation of the trachea (known as the carina), above the point of division of the pulmonary artery, and behind the aortic arch. It is formed by the cardiac nerves derived from the cervical ganglia of the sympathetic trunk, and the cardiac branches of the vagus and recurrent ...
The anterior pulmonary plexus is close in proximity to the pulmonary artery. [1] The posterior pulmonary plexus is bounded by the superior edge of the pulmonary artery and the lower edge of the pulmonary vein. [1] Both lungs are innervated primarily by the posterior pulmonary plexus; it accounts for 74–77% of the total innervation. [1]
Cardiopulmonary nerves are splanchnic nerves that are postsynaptic and sympathetic. [1] They originate in cervical and upper thoracic ganglia [1] and innervate the thoracic cavity. [1] All major sympathetic cardiopulmonary nerves arise from the stellate ganglia and the caudal halves of the cervical sympathetic trunks below the level of the ...
Cardiopulmonary nerves: Postsynaptic: sympathetic: cervical and upper thoracic ganglia: Thoracic cavity: Thoracic splanchnic nerves: generally: Presynaptic: lower thoracic ganglia: Prevertebral ganglia: Greater splanchnic nerve: T5–T9 or T10: Celiac ganglia: Lesser splanchnic nerve: T10–T11: Superior mesenteric ganglia and Aorticorenal ...
The nerve contributes to the celiac plexus, a network of nerves located in the vicinity of where the celiac trunk branches from the abdominal aorta. The greater splanchnic nerve modulates the activity of the enteric nervous system of the foregut. It stimulates contraction of the splanchnic vasculature, increasing blood pressure. [5]
The thoracic ganglia are paravertebral ganglia.The thoracic portion of the sympathetic trunk typically has 12 thoracic ganglia.Emerging from the ganglia are thoracic splanchnic nerves (the cardiopulmonary, the greater, lesser, and least splanchnic nerves) that help provide sympathetic innervation to thoracic and abdominal structures.
Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another.
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