Assertion: prolactin | /r/HasProperty | transported by exocytosis
Facets:
value: into the alveolar lumen
type: TRANSITIVE-OBJECT
value: ultimately
type: DEGREE
value: through the apical membrane
type: MANNER
Source sentences:
text: Apparently, prolactin reaches the milk by first crossing the mammary epithelial cell basement membrane, attaches to a specific prolactin binding protein within the mammary epithelial cell, and is ultimately transported by exocytosis through the apical membrane into the alveolar lumen (1352,1583).