Areas - Anterior Mediastinum Flashcards
1
Q
Borders?
A
Lateral - mediastinal pleura (part of the parietal pleural membrane).
Anterior - body of the sternum and the transversus thoracis.
Posterior - pericardium
Roof - continuous with the superior mediastinum at the left of the sternal angle.
Floor - diaphragm
2
Q
A
3
Q
Contents?
A
Contains no major structures. It accomodates loose connective tissue (including the sternopericardial ligament, which tether the pericardium to the sternum, fat, some lymphatic vessels, lymph nodes, and branches of the internal thoracic vessels.
In infants and children, the thymus extends inferiorly into the anterior mediastinum. However the thymus recedes during puberty and is mostly replaced by adipose tissue in the adult.
