Assertion: lymphatic system's heart | /r/MadeOf | two chambers
Facets:
Source sentences:
text: The heart of fish is, therefore, only a single pump (consisting of two chambers).
text: The human heart consists of 4 chambers.
text: The human heart consists of four chambers – two ventricles and two auricles.
text: The heart of fish is therefore only a single pump (consisting of two chambers).