Park Cities doctor, Lynley McAnalley visited her son James' 4 year old class at UPUMC Weekday School and led the children in a hands on study of the heart.  Dr. McAnalley demonstrated the inner workings of the heart through the dissection of a sheep's heart and also talked to the children about how important it is to have a healthy heart.  The children marveled at the size and feel of the heart and aorta and enjoyed listening to the beat of their own hearts throught the stethoscope.