Hi just wondering. I know that arteries and veins are both compliant. but you said that arteries have a greater recoil to generate pressure, but the veins do not recoil. What exactly is the difference between compliance and recoil?
Compliance is the difficulty something gives to being distended it has a formula ∆V/∆P, while recoil is the capacity of a material to get back to it's normal shape after being distended, it's formula it's the inverse of the other. You have probably already found it, but here it is
Awesome video, but I have one question. You said that arteries actually recoil alongside the blood that is going through them, and that's how the blood moves. But do these recoil happen many times, or do they do so very infrequently so it doesn't disrupt the movement of blood? Thanks
Right before the left ventricle contracts and pumps the blood into the aorta, the aorta is relaxed and not recoiling at all. When the contraction takes place, the blood begins to move through the aorta, filling it and stretching it slightly. However, the aorta resists the stretching and recoils, forcing the blood into the next section of the artery, which causes the same exact thing in that section. This continues until we reach the arterioles, where the blood pressure sharply drops and recoil is not as noticeable. This is important because we want the pressure to decrease and the blood to slow down before the capillaries, where exchange of nutrients will occur. So to answer your question, no the recoil is not sporadic at all, it takes place in a uniform and consequent manner.
Thank you so much . You make my life easy . I have question you said that the blood move into the veins because of muscle contraction , But what if we're lying for along time and there is no muscle contraction , How the veins will retain the blood to the heart ?
I always like to take the notes before I watch the video, so stop the video at @14:00 and you'll get a clear view of the board.
You are a great teacher.
i have a test and this has helped me so much, more than my lecturer !
Reviewing everything with you AK, before A&P2
Brilliant as always
You are great sir😇
bohot hi achhaaaaaa very nice thanku Sir
Hi just wondering. I know that arteries and veins are both compliant. but you said that arteries have a greater recoil to generate pressure, but the veins do not recoil. What exactly is the difference between compliance and recoil?
Compliance is the difficulty something gives to being distended it has a formula ∆V/∆P, while recoil is the capacity of a material to get back to it's normal shape after being distended, it's formula it's the inverse of the other. You have probably already found it, but here it is
Awesome video, but I have one question. You said that arteries actually recoil alongside the blood that is going through them, and that's how the blood moves. But do these recoil happen many times, or do they do so very infrequently so it doesn't disrupt the movement of blood?
Thanks
Right before the left ventricle contracts and pumps the blood into the aorta, the aorta is relaxed and not recoiling at all. When the contraction takes place, the blood begins to move through the aorta, filling it and stretching it slightly. However, the aorta resists the stretching and recoils, forcing the blood into the next section of the artery, which causes the same exact thing in that section. This continues until we reach the arterioles, where the blood pressure sharply drops and recoil is not as noticeable. This is important because we want the pressure to decrease and the blood to slow down before the capillaries, where exchange of nutrients will occur. So to answer your question, no the recoil is not sporadic at all, it takes place in a uniform and consequent manner.
AK LECTURES Makes sense now, thanks for the video + answer :]
Thank you so much . You make my life easy . I have question you said that the blood move into the veins because of muscle contraction , But what if we're lying for along time and there is no muscle contraction , How the veins will retain the blood to the heart ?
there will be less noticeable effect of gravity if we lying down ^_*
but if we remain standing for such a long time without walking there will be such an abnormality that's called varicose veins
sorry for my english /:
Can u pls tell me blood flow in artery nd vein?is it same?
b.r.i.l.i.a.n.t!!!!
Hi, Can you introduce some references to the materials of the lecture?