"The middle mediastinum is an artificial space of the mediastinum divided from the remainder of the extra-pleural intrathoracic cavity by arbitrary lines. It forms the largest component of the inferior mediastinum."
Line 1:127·A prefix takes a hyphen only to avoid a duplicate letter: 'extra-pleural'.
Headings Valid
warning
Expected headings
H1
Summary
H1
Gross anatomy
H2
Articulations
H2
Attachments
H3
Musculotendinous
H3
Ligamentous
H2
Relations / Boundaries
H1
Arterial supply
H1
Venous drainage
H1
Lymphatic drainage
H1
Innervation
H1
Histology
H1
Variant anatomy
H1
Radiographic features
H2
Plain radiograph
H2
Ultrasound
H2
CT
H2
MRI
H2
Nuclear medicine
H1
Development
H1
Clinical importance
H1
Related pathology
H1
History and etymology
H1
See also
"Contents"
Line 9:1·"Contents" is not a recognised heading for this article type.