contraction and relaxation of the heart muscles
No, its an involuntary movement
It should mean fast movement. e.g. Bradykinesia is slow movement. Bradycardia is slow heart rate. Tachycardia is fast heart rate.
the heart beats approximatively100 times when running or jogging when you swim it beats the same amount but stronger movement increase the speed
coranary circulation
"The real heart of the movement is to use the government as an agency for social welfare."
The Brain...and the heart contributes.
Digestive
upper chambers of the heart
A wonderful question to explore is the juxtaposition of opposites in Heart of Darkness. Also, consider the topic of "movement;" the movement of civilization, the cruising Nellie, the motion of time, etc.
You may have a heart problem. See your doctor.
lymph