contestada

(Science)How does the heart keep the blood flowing throughout the body?

It contracts and relaxes
It inflates and deflates
It inhales and exhales
It opens and closes

Respuesta :

Answer:

your heart contracts and relaxes, taking blood through one ventricle into one of the aorta and releases it into another aorta to give it oxygen from the lungs and then when it contracts it forces the blood out back into the body

Otras preguntas