Q.2 Arteries have thicker walls than veins do. Veins have valves to prevent back-flow of blood.
Q.3 The function of the auricle is to expand the blood capacity of the atrium.
Q.4 The vacuum sealing of our heart collapsed the atria, but we could still see that the atria are larger than the ventricle.
Q.6 Anchoring of the heart is important because it keeps the heart in place so it isn't damaged during movement.
Q.8 The function of the semilunar valves is to prevent backflow from the ventricles to the aorta and pulmonary trunk.
Q.9 With valve disease on the right side of the heart, the swelling of feet and ankles is due to blood pooling in the feet because there is nothing to prevent back-flow so gravity will push the blood. If valve disease occurs on the left side of the heart, the complications would be a decrease in blood flow and a lack of oxygen reaching the body.
Q.11 The right side of the heart is significantly smaller than the left side because the left side needs more muscle to pump the blood through the body.
https://www.youtube.com/watch?v=5cruHmQiTAA&feature=youtu.be
https://www.youtube.com/watch?v=5cruHmQiTAA&feature=youtu.be
No comments:
Post a Comment