23 Questions
What is the term for the compression of the vagus nerve by an aortic aneurysm or enlarged tracheobronchial lymph nodes?
Mediastinal syndrome
How many ganglia are typically present in the thoracic part of the sympathetic chain?
11 or 12
What is the name of the ganglion formed by the fusion of the 15th thoracic ganglion and the inferior cervical sympathetic ganglion?
Stellate ganglion
Where does the thoracic sympathetic chain lie in the posterior mediastinum?
Most laterally placed structure
What is the number of rami communicantes that connect each sympathetic ganglion to the corresponding thoracic spinal nerve?
2
Above which part does the thoracic part of the sympathetic chain continue?
Cervical part
From which ganglia does the lesser splanchnic nerve arise?
The 9th and 10th ganglia
What is the termination point of the lesser splanchnic nerve?
The ganglia of the renal plexus
Which nerve runs the same course as the greater splanchnic nerve?
The lesser splanchnic nerve
How many ganglia are involved in the origin of the lowest splanchnic nerve?
One ganglion
What is the name of the ganglion where the greater splanchnic nerve terminates?
The aorticorenal ganglion
Which type of nerves arise from the lower ganglia?
Vascular and visceral branches
What is the function of the splanchnic nerves?
Carrying preganglionic efferent and visceral sensory afferent fibers
Where do the splanchnic nerves end?
In the coeliac ganglion
What is the path of the greater splanchnic nerve?
It arises from the upper ganglia and travels downwards to the abdominal cavity
What is the relationship between the sympathetic chain and the ganglia?
The ganglia are located along the sympathetic chain
What is the function of the vascular and visceral branches?
To supply the abdominal viscera with blood
Which plexus is mainly formed by the parasympathetic fibres from the vagus nerve?
Anterior oesophageal plexus
Which nerve forms the posterior oesophageal plexus?
Left vagus nerve
What is the origin of sympathetic fibres in the cardiac plexus?
Upper 5 thoracic ganglia
Which plexus is located below the root of the lung?
Inferior pulmonary plexus
What type of fibres are found in the posterior pulmonary plexus?
Both parasympathetic and sympathetic fibres
Where do the anterior and posterior oesophageal plexuses originate from?
Vagus nerve and thoracic ganglia
Test your knowledge of the thoracic anatomy, focusing on the vagus nerve and sympathetic chain. Learn about the clinical implications of compression and its relation to mediastinal syndrome, lung cancer, and hoarseness of voice. Explore the anatomy of the thoracic part of the sympathetic chain and its connection to the vertebral column.
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