can anyone help .that my model is circulatory system in that major arteries n veins in the human body .I have searched in youtube but I didn't get can I have some more idea from brainly friends plzz help me yaar .for model.
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To make your heart model work, squeeze the middle bottle only. Start by pinching the straw between the atrium and ventricle bottle. Squeeze the middle bottle and watch your “blood” squirt out into the body. Keeping the middle bottle “squeezed” move your fingers and pinch the straw between the ventricle and body.
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