Term: primary head sinus lymphangiogenic sprout
Name: primary head sinus
Synonyms: lateral head vein, PHS
Definition: Main route for venous drainage of the anterior and mid cerebral veins as well as portions of the primordial hindbrain channel.
Ontology: Anatomy Ontology [ZFA:0005026]

Name: lymphangiogenic sprout
Synonyms:
Definition: Portion of vessel wall that extends to form a new lymph vessel.
Ontology: Anatomy Ontology [ZFA:0005603]