IDNStudy.com, kung saan ang iyong mga tanong ay natutugunan ng mga eksperto. Makakuha ng mga kumpletong sagot sa lahat ng iyong mga tanong mula sa aming network ng mga eksperto.

how many direction/s does the blood flow?​

Sagot :

With this system, blood always flows in only one direction inside the heart. There are also valves at the bottom of the large arteries that carry blood away from the heart: the aorta and the pulmonary artery. These valves keep the blood from flowing backward into the heart once it has been pumped out.