Mediastinum So Funny :ddd

Front 1

Boundaries of superior mediastinum?

Back 1

superiorly by the thoracic inlet, the upper opening of the thorax
inferiorly by the transverse thoracic plane, a slightly oblique plane passing posteriorly from the junction of the manubrium and body of the sternum (sternal angle of Louis) to the junction of the 4th and 5th thoracic vertebra (see also thoracic plane)
laterally by the pleurae
anteriorly by the manubrium of the sternum
posteriorly by the first four thoracic vertebral bodies

Front 2

Contents of superior mediastinum?

Back 2

Thymus (or its remnant, superior vena cava, brachiocephalic veins, vagus nerves, cardiac branches of vagus nn, cardac nn, superficial part of cardiac plexus, left recurrent laryngeal nerve, phrenic nerves, aortic arch, brachiochephalic trunk, left common carotid a, left subclavian a, trachea, paratracheal ln, tracheobronchial ln, esophagus, thoracic duct.

Front 3

Boundaries of anterior mediastinum?

Back 3

Laterally by the pleurae
Posteriorly by the pericardium
Anteriorly by the sternum, the left transversus thoracis and the fifth, sixth, and seventh left costal cartilages

Front 4

Contents of anterior mediastinum?

Back 4

prepericardial ln, thymus (or its remnant), sternopericardiac lig,

Boundaries of middle mediastinum? & fibrous pericardium anteriorly and posteriorly : By fibrous pericardium, bronchopericardial membrane, posterior border of root of lung

Contents of middle mediastinum? & Fibrous pericardium, heart, superior vena cava, inferior vena cava, ascending aorta, pulmonary trunk, phrenic nn, pericardiacophrenic vessels, azygos vein, tracheal bifurcation, superior and inferior tracheobronchial ln, deep cardiac plexus, pulmonary plexi, pulmonary aa, pulmonary vv, principal bronchi,

Front 5

Boundaries of posterior mediastinum?

Back 5

anteriorly by the pericardium (in front of)
inferiorly by the thoracic surface of the diaphragm (below).
superiorly by the transverse thoracic plane (above). This plane is marked by an imaginary line travelling through the manubriosternal joint to the dividing line between the fourth and fifth thoracic vertebrae.
posteriorally by the bodies of the vertebral column from the lower border of the fifth to the twelfth thoracic vertebra (behind).
laterally by the mediastinal pleura (on either side)

Front 6

Content of posterior mediastinum?

Back 6

Esophagus, anterior and posterior esophageal plexi (anterior and posterior vagal trunks), thoracic aorta, thoracic duct, azygos vein, posterior mediastina ln, greater, lesser and least thoracic splanchnic nn..