Chapter 8.3b - The Cardiac Cycle | Cambridge A-Level 9700 Biology
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- Опубліковано 3 жов 2021
- Based on the NEW! 2022-2024 syllabus
Cambridge Assessment International Education
9700 AS Biology
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This was great explanation but at 5.16 according to my information from book, the pulmonary vein and vena cava don't have valves as heart only has 4valves..can u plz confirm this ?
Vena cava has valves. Pulmonary vein does not (it is an exception)..
Completely forgot that! Thanks for pointing it out
Oki thankyou so much ! I was a bit confused about that ❤@@behlogy
@@behlogy this is a bit confusing since the textbook diagrams show that the pulmonary vein does have a semilunar valve (closes during atrial systole and opens during diastole and ventricular systole)
I can't thank you enough. Your videos are amazing, so easy, and fun to learn. Thank you so much, ma'am. 🙏🏻
thank you so so much for your videos!! such a lifesaver. your style is great and engaging. thank you for making these free
Miss you are my biology godmother!!!😭thank you so much I love u🥰!!!!
Your videos help a lot, I can't thank you enough!!!
thank you so much! this is so helpful
thank you for these videos
Thank you so much for simplifying the content and making it understandable, however I was wondering, are your videos more on the revision side, or the studying side?
It's whatever you make it to be! I made it as lecture videos for my students a while back. These were legit classes with all/most of the details you require for exams.
@@behlogy Alright then, thank you so much :D
Why in atrial systole valves in pulmonary veins and vena cava are closed?
Bcs when the atrium is contracting the pressure is higher than in the veins, causing in the valves to close. If not, blood will backflow...
Do I have to remember mass of heart,blood pressure in capillary, vein , artery and mass of blood plasma,wbc,rbc and platelets in body?
Noooooo masses noooooo.
Can you suggest some revising tips for the exam it’s sooooo difficult to remember everything
practice past papers. quality > quantity. read and pay attention to details....repeat. it should stick your brain after a while.
try to connect the studies in a fun way so you can remember, example i use diastole to remember relax as "die" you finally relax (sorry if this is too dark heh)
@@meowmeow-dw3bi omg same i remember it that way too lol
@@Amrah782 us :) are u doing AS this may june
Easier way to remember when the valves close is to learn “COCO”.. C is for close and O is for open. Above the graph represents the semilunar valves and below represents AV valves. ( for graph only )
i love you madam gee