Lab 10 Blood and the Heart

Experiment 4: Blood Typing Experiment
Table 4: Blood Typing Results

Post-Lab Questions
“1. What determines blood type? “

2. What type of blood antigens are expressed if a person is blood type AB negative? “

3. Why doesn’t a transfusion reaction occur the first time an Rh negative patient is exposed to
   Rh positive blood? “

Experiment 5: Virtual Model – The Heart Coloring Activity

Post-Lab Questions

1. What component of the heart separates the left and right ventricles?
   The septum
2. Which is more superior: the arch of the aorta or the atrioventricular septum?
   The arch of the aorta
3. What component of the heart prevents the flow of the blood from the right ventricle to the
   right atrium?
   The Tricuspid Valve

Experiment 6: Sheep Heart Dissection

Post-Lab Questions

1. What surprised you about the anatomy of the sheep’s heart?
   I wasn’t expecting the myocardium to be that thick. The proximity of the heart’s valves,
   including the aortic, pulmonary, and vena caval ones, was another significant surprise.
2. Research diseases of the heart valves. How might a valvular insufficiency affect heart function?
   How would valvular stenosis (tightening or less ability to open easily) affect heart function?
   Since the heart must pump harder to compensate for any blood loss caused by leaky valves,
   valvular insufficiency may impair cardiac function.
   Because it prevents the heart valves from opening all the way, valvular stenosis impairs heart
   function by decreasing blood flow. If the entrance becomes too tiny, blood won’t be able to
   reach the remainder of your body.