Assertion: lymphatic system's pump | /r/HasProperty | central
Facets:
Source sentences:
text: Unlike the cardiovascular system, which has a distinct pumping mechanism that causes the heart muscle to contract and relax cyclically, the lymphatic system doesn’t have a central pump.
text: Since your lymphatic system doesn’t have that central pump, it’s important to engage in movement and exercise as much as your body tolerates.
text: Unlike the cardiovascular system, the lymphatic system is not closed and has no central pump.
text: In some amphibian and reptilian species, the lymphatic system has central pumps, called a lymph hearts which typically exist in pairs, but humans and other mammals do not have a central lymph pump.