2. In the fetus, the foramen ovale allows blood to pass directly from the right atrium into the left atrium, bypassing the lungs. Why doesn't much blood need to go to the lungs in a fetus? 3. Why is the wall of the left side of the heart thicker than the right? (Hint: think about where the blood has to go after leaving the right ventricle versus leaving the left.) 4. On Figure 3-10, label the right and left sides of the heart, the right and left ventricles, the bicuspid valve, and the interventricular septum. FIGURE 3-10 Frontal section of the sheep heart.
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In the fetus, the foramen ovale allows blood to pass directly from the right atrium to the left atrium, bypassing the lungs. This is because the fetus does not need to use its lungs for oxygen exchange, as it receives oxygenated blood from the mother through the Show more…
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Adi S.
Concerning development of the ventricles a. the embryonic bulboventricular loop normally bends to the left explaining why the heart is on the left side of the body b. the embryonic bulbus cordis contributes to both the right and left adult ventricles c. the primitive ventricle is the last embryonic heart chamber to form d. the interventricular septum is derived from the embryonic septum secundum e. the embryonic sinus venosus forms the membranous part of the interventricular septum
Blood flows through the___________ vena cavae and coronary sinus into the right atrium through the to the right ventricle, through the pulmonary valve to the pulmonary trunk into the right and left ____________to the lungs, then leaves the lungs through the pulmonary veins and flows into the _______________, through the mitral valve to the , and through the______________ to the ___________________aorta.
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