There are two Pericardial sinuses: transverse and oblique. The cul-de-sac enclosed between the limbs of the inverted U of the venous mesocardium lies behind the left atrium and is known as the oblique sinus. . The passage between the venous and arterial mesocardiabi.e. , between the aorta and pulmonary artery in front and the superior vena cava behindbis termed the transverse sinus. Also, the sinus that forms in the pericardial cavity where the dorso-mesentary pericardium reside. Can be used to pass ligature during cardiac surgery.

http://purl.obolibrary.org/obo/UBERON_0010279

There are two Pericardial sinuses: transverse and oblique. The cul-de-sac enclosed between the limbs of the inverted U of the venous mesocardium lies behind the left atrium and is known as the oblique sinus. . The passage between the venous and arterial mesocardiabi.e. , between the aorta and pulmonary artery in front and the superior vena cava behindbis termed the transverse sinus. Also, the sinus that forms in the pericardial cavity where the dorso-mesentary pericardium reside. Can be used to pass ligature during cardiac surgery.

http://purl.obolibrary.org/obo/uberon.owl

pericardial sinus

UBERON:0010279

pericardial sinus

http://purl.obolibrary.org/obo/UBERON_0002553