Overview
Where is the mediastinum located
between the pleural cavities
When examining the cadaver you can see the aortic arch, SVC, azygos v., L recurrent laryngeal n., and the thoracic duct. Where are you in the mediastinum?
Superior Mediastinum
What structure is located between the azygos v. and the esophagus?
Thoracic duct
What sympathetic structures are present in the mediastinum?
Sympathetic chain
Prevertebral ganglia
Splanchnic nn.
What takes up the majority of the middle mediastinum
Heart
What is the posterior border of the mediastinum?
vertebral body
When examining the cadaver you can see the heart, pulmonary trunk, phrenic nn, and the pericardiacophrenic aa. Where are you in the mediastinum?
Middle Inferior Mediastinum
Where does the thoracic duct go into the venous system?
L venous angle
What levels make up the greater splanchnic nn?
T5-T9
What does DATES mean and where does it apply?
Descending aorta
Azygos System
Thoracic Duct
Esophagus
Sympathetics
Posterior Mediastinum Contents
Where is the TTP?
between T4 and T5
When examining the cadaver you can see the esophagus, aorta, thoracic duct, azygos v., and vagus nn. Where are you in the mediastinum?
Posterior inferior mediastinum
Where will lymph from the R side of the face eventually drain?
R lymphatic duct
How do parasympathetic impulses reach the lungs?
Vagus nn descend from the head through the neck> hop onto the pulmonary plexus> synapse on the intramural ganglia
The aorta passes through the diaphragm at what vertebral level?
T 12
What are the divisions of the Mediastinum?
Superior
Inferior
Anterior
Middle
Posterior
When examining the cadaver you see the Vagus nn., Cardiac nn., l recurrent laryngeal n. cardiac/esophageal/pulmonary plexuses, sympathetic chain, and the phrenic nn. Where are you in the mediastinum?
Superior Mediastinum
What is the beginning of the thoracic duct?
cisternal chyli
What prevertebral ganglia are associated with the least splanchnic n?
Aorticorenal
Inferior mesenteric
What is the patients R most branch of the aortic arch?
Brachiocephalic trunk
What is in the mediastinum as children but not as adults?
Thymus
When examining the cadaver you see the thymus, no nerves, and lymph nodes. Where are you?
Anterior mediastinum
Where will lymph from the R leg eventually drain?
Thoracic duct
How do sympathetic impulses reach the heart?
lateral horn> anterior root> SN> ventral rami> white rami> sympathetic chain> ascend to cervical ganglia synapse> cardiopulmonary splanchnic nn> cardiac plexus> heart> synapse
Where does the azygos drain into the SVC?
superior Mediastinum