Search for tag: "blocked"

00:12 Bradycardia.mp4 Bradycardia.mp4	Bradycardia.mp4 sympathetic heart levels outflow cardiovascular physiology cardiac decreased blocked contractility caption complete From Dave Frank 10 plays
00:11 pfiz_epi_01_03_02_01_hotspot2_720x406.flv pfiz_epi_01_03_02_01_hotspot2_720x406.flv	pfiz_epi_01_03_02_01_hotspot2_720x406.flv sympathetic heart levels outflow cardiovascular physiology cardiac decreased blocked contractility caption complete From Dave Frank 5 plays