Yes, it's the past participle of pump.
Present participle - winding Past participle - winded
The past participle is winded.
The present participle is shaking.
The past participle is heated.
The past participle is sped.
pumped bacon is pumped bacon
it is pumped to the heart first then to the lungs
Being is the present participle. The past participle is been.
The past participle of do is done. The past participle of have is had.
The present participle is beating. The past participle is beat.
Present participle - winding Past participle - winded
The present participle is "sowing" and the past participle is "sown".
Begun is the past participle, and beginning is the present participle.
The past participle of am is been. Not does not have a past participle
blood is pumped through lungs
The present participle is swelling. The past participle is swelled.
The past participle is proceeded. The present participle is proceeding.