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The subcutaneous perineal pouch is a potential space between the membranous layer of perineal subcutaneous tissue and the superficial layer of the investing fascia of perineal muscles. Extravasations or collections in the subcutaneous pouch may track, deep to the membranous layer of subcutaneous tissue, into the anterior abdominal wall, along the clitoris/penis and far into the labia or scrotum.

The superficial perineal pouch is a fully enclosed compartment, being bounded below by the perineal fascia (the superficial layer of the investing fascia of the superficial perineal muscles) and above the perineal membrane.

The deep perineal pouch on the other hand, is not an enclosed compartment but is open to above. This and the deep urogenital muscles are bounded below by the perineal membrane but extend up into the pelvis rendering the old term diaphragma urogenitalis and fascia diaphragmatis urogenitalis inferior misnomers (Oelrich 1980 Am J Anat 158:229-264; 1983 Anat Rec 205:223-232).

Membrana bronchopericardiaca A connective tissue membrane consisting mainly of collagenous fibres that extends from the anterior surface of the tracheal bifurcation via the dorsal wall of the pericardium to the diaphragm. Three fibre directions can be discerned. Vertical fibres run in the direction just mentioned. Transverse fibres run from the pericardium into the lung where they join the adventitia of the large pulmonary veins. Oblique fibres extend from the two main bronchi diagonally over the pericardium into the opposite pulmonal ligaments. The membrane is the borderline between the middle and the posterior mediastinum, together with the tracheal bifurcation. Its function is to stabilize the tracheal bifurcation and that of the main bronchi, in relation to the dorsal aspect of the pericardium and the pulmonary hilus, during movements relating to respiration, the larynx, and the head. Benninghoff Anatomie. 1994. Edited by Drenckhahn D. and Zenker W. Vol. 1. p. 557. München-Wien-Baltimore: Urban & Schwarzenberg. Rauber/Kopsch. 1987. Anatomie des Menschen. Edited by Leonhardt H. Vol. 2, p. 159. “Innere Organe." Stuttgart, New York: Georg Thieme.

Encomboma omentale: Although the pendulous portion of the greater omentum is often called the greater omentum, this part should be designated as the omental apron in order to distinguish it from the other parts of the greater omentum.