Identify the structure of the human heart which is a muscular chamber that pumps blood out of the heart and into the circulatory system. A) atrium B) ventricle C) coronary artery D) pulmonary artery
B. Ventricle pumps blood out.
B. The Ventricle. Hey Braniac! Thanks for your question! Don't forget to rate and give me the brainliest answer! Then, I can help you with all your problems! ^-^ ~