Multiple Choice
Identify the structure found in a fetus that allows blood to flow directly from the pulmonary trunk into the aorta.
A) Fossa ovalis
B) Foramen ovale
C) Trabeculae carneae
D) Descending aorta
E) Ductus arteriosus
Correct Answer:
Verified
Correct Answer:
Verified
Q37: Cardiac muscle fibers are electrically connected to
Q38: Briefly describe why cardiac tissue cannot repair
Q39: Positive inotropic agents often promote inflow of
Q40: The period of atrial systole lasts about
Q41: Which labeled blood vessel in the diagram
Q43: Heart murmurs are often heard in individuals
Q44: The coronary sulcus marks the external boundary
Q45: In the diagram,which labeled structure prevents blood
Q46: Prior to physical activity,the heart rate may
Q47: Which of the following electrocardiogram (ECG)waves represents