The Heartbeat Sound Lup-dup
By Science SauceFrom YoutubeMarch 11, 2026
The Heartbeat Sound
#Heart
#Secondary
#Pulmonaryvein
#Lung
#Science
#Deoxygenated
#Biology
#Educational
#Sound
#Inferiorvenacava
#Oxygenated
#Pulmonaryartery
#Heartbeat
#Aorta
#Learn
#Humanbody
#Superiorvenacava
#Body
#Arm