Quick Facts
Origin: Union of pulmonary capillary networks.
Course: Accompanies the superior and inferior lingular segmental bronchus (B4+5) of left lung.
Tributaries: Superior and inferior parts.
Drainage: Superior and inferior lingular bronchopulmonary (and surrounding) segment of left lung.
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Vein
A venous sinus is a vein with a thin wall of endothelium that is devoid of smooth muscle to regulate its diameter.
