The term "plexus aorticus thoracalis" refers to a complex network of nerve fibers that surround and innervate the aorta in the thoracic (chest) region of the body.
The plexus aorticus thoracalis is part of the autonomic nervous system, specifically the sympathetic division. It is responsible for regulating and controlling various physiological processes and functions in the thoracic region, including the heart, blood vessels, and other internal organs found in that area.
This nerve plexus is composed of multiple interconnected ganglia (clusters of nerve cell bodies) and nerve fibers, which travel along and surround the aorta. These nerve fibers originate from the sympathetic chain ganglia, which are located alongside the vertebral column.
The main function of the plexus aorticus thoracalis is to relay nerve impulses to the thoracic organs, enabling them to respond to various stimuli and maintain homeostasis. It plays a crucial role in regulating heart rate, blood pressure, and blood flow distribution in the thoracic region.
The plexus aorticus thoracalis also functions in coordinating the body's response to stress or danger, commonly known as the "fight-or-flight" response. When activated, this nerve plexus can increase heart rate, dilate blood vessels, and redirect blood flow to essential organs to prepare the body for physical exertion or emergencies.
Overall, the plexus aorticus thoracalis is a vital component of the autonomic nervous system, enabling effective communication between the brain and thoracic organs to maintain normal physiological functions and respond to environmental stimuli.
