heartbeat If asked which organs in our body work hard The answer is definitely in the heart. throughout its life It must be pulsating. to maintain blood flow in our body and pulse How important is the signal at your fingertips? between day and night Indicates that our body has a problem. The information can be described as follows.
อ่านเพิ่มเติม โรงเรียนบ้านหนองปากชัฎ นานาสาระ การเต้นของหัวใจ