Assertion: lymphatic system's heart | /r/AtLocation | figure
Facets:
value: during a normal lifetime
type: TEMPORAL
Source sentences:
text: Humans, birds, and mammals have a four-chambered heart that completely separates oxygen-rich and oxygen-depleted blood, as is shown in Figure 10.
text: The heart, shown in Figure 11, is a muscular structure that contracts in a rhythmic pattern to pump blood.
text: The human heart will undergo over 3 billion contraction cycles, as shown in Figure 12, during a normal lifetime.