Answer to Question 1
ANS: A
As a result, 90 of the blood flow entering the pulmonary artery takes the path of least re-sistance by shunting through the ductus arteriosus and flows to the aorta. Only 10 flows into the lungs.
Answer to Question 2
ANS: C
Figure 9-6 illustrates how the increased O2 affinity is manifested by a leftward shift of the fetal oxyhemoglobin dissociation curve. The P50 (PO2 that saturates 50 of the hemoglobin) is 6 to 8 mm Hg less than adult hemoglobin (HbA), which indicates the degree of the shift toward higher affinity.
Illustration showing how the primary breast tumor metastasized through the lymphatic and blood vesse
Venous return to the heart and blood flow to the lungs.
Stages of Natural Fetal Birth "مراحل الولادة الطبيعية"
Ventricular fibrillation
Fetal Period
Action Potential in a Ventricular Fiber