After their study of six major human body systems, Heritage fourth graders went to the expert with their questions. Students participated in a live video chat using Apple’s iChat video conferencing software on a school issued MacBook. Dr. Jeff Jenkins, Family Practice physician of White House, Tennessee, responded as students asked him about their wonderings. Dr. Jenkins explained to the students why we hiccup, gave them an idea of the actual size of their lungs, discussed what happens to our body when we sneeze, and answered many of their other inquiries.