Love this video? Check out our course "Cardiovascular Physiology" made entirely with videos like this (without watermark): Students, click here: www.alilaacademy.com/courses/cardiovascular-physiology-for-students Teachers, click here: www.alilaacademy.com/courses/cardiovascular-physiology-for-teachers
@@AntiMasonic93 No, I’m a US medical student so we do 4 years of undergraduate, 4 years of medical school, 3+ years of residency. A second year medical student is still about 5+ years off from finishing residency
HERE AFTER WATCHING A COUPLE OF VERY GOOD VIDEOS ...BUT THIS ONE IS ACTUALLY THAT GOOD, I FELT THE NEED TO GIVE IT A LIKE AND A +VE COMMENT .....WELL DONE ALILA MM
This video is surprising well explained. Thank you ma'am for your efforts. This helped me a lot to understand the portal system and to complete my syllabus😁
In a the common setup of the circulatory syestem, oxygenated blood from the heart flows through arteries to capillaries - the smallest blood vessels where nutrient and gas exchange takes place. A network of capillaries that nourish an area is called a capillary bed. Blood from capillary beds, now DE- oxygenated drains into veins to return to the heart. A portal venous system is a DEVATION from this configuration. It occurs when capillary bed drains into ANOTHER capillary bed BEFORE going back to the heart. It's a VENOUS system because the vessels that connect the two capillary beds are VEINS: they contain DE- oxygenated blood. With this arrangement, a portal system allows DIRECT transformation of substance from one organ to another WITHOUT spreading them all over the body. An example is the hypophyseal portal system, which connects the hypothalamus and pituitary gland. Hormones produced by the hypothalamus are SECRETED into the portal system to REACH the anterior pituitary, where they regulate production of pituitary hormones. But the better known portal system is perhaps the one that involves the liver. In fact, when not specified otherwise, the term "portal system" usually refers to the hepatic portal system. In the hepatic portal system, venous drainage form MOST of the gastrointestinal tract, plus the spleen and pancreas, pools into the portal vein to reach the liver, BEFORE returning to heart. This way, all substances ABSORBED through the GI tract(lower esophagus to upper anal canal), including nutrients, toxis and pathogens, are FIRST processed in the liver BEFORE they can reach the GENERAL circulation. The liver acts like a GATEKEEPER to the body, it serves two major functions in THIS context. First the liver processes the nutrients and regulates the AMOUNT of nutrients that can ENTER the blood. For example, after a meal, when glucose SPIKES from digestion of carbs, the liver converts EXCESS glucose into glycogen for storage. When the body is fasting, glycogen is converted back to glucose to be released to the blood. In other words, the liver CONTROLS the BALANCE of blood sugar, preventing excessive fluctuations. The free amino acids resulting from protein digestion are also processed in the liver, when they are synthesized into NEW proteins and pro-enzymes. EXCESS free amino acids, which can be HARMFUL, are converted to other forms of energy storage, or BROKEN DOWN to urea to be REMOVED in waste. This brings us to the SECOND function of the liver as a DETOXIFICATION organ. The liver SCREENS the blood for potentially toxic substances and pathogens, and REMOVES then BEFORE they can reach the rest of the body. It can, for example, remove alcohol and drugs from the blood. An important pharmacological implication of liver functions is that most MEDICINES administered orally are METABOLIZED in the liver, and MAY become DEactivated, before reaching the general circulation and TARGET organs. This is known as the first pass effect. For this reason, some medicines MUST be taken via OTHER routes to BYPASS liver metabolism. On the other hand, some drugs are SPECIFICALLY designed as Pro-drugs and must be taken orally, as they require CONVERSION in the liver to become functional.
That means that in the portal system .. the primary capillary bed exchange oxygen only while the second exchange nutrients and substances without oxygen ??!!!
@@Alilamedicalmedia if I explain your video in my local language to my students indirectly I am promoting your videos with your watermark.They will follow your videos for english version.If you allow please .comment.....Thank you.
Love this video? Check out our course "Cardiovascular Physiology" made entirely with videos like this (without watermark):
Students, click here: www.alilaacademy.com/courses/cardiovascular-physiology-for-students
Teachers, click here: www.alilaacademy.com/courses/cardiovascular-physiology-for-teachers
wow, this was surprisingly well explained and helpful.
Great video! I'm a second year medical student preparing for boards and this video really helped jog my memory.
Have you completed your residency?
@@AntiMasonic93 No, I’m a US medical student so we do 4 years of undergraduate, 4 years of medical school, 3+ years of residency. A second year medical student is still about 5+ years off from finishing residency
HERE AFTER WATCHING A COUPLE OF VERY GOOD VIDEOS ...BUT THIS ONE IS ACTUALLY THAT GOOD, I FELT THE NEED TO GIVE IT A LIKE AND A +VE COMMENT .....WELL DONE ALILA MM
Straight to the point and yet detailed... Thank you 🙌
I'm an EMT student and this was an incredible video
Amazing 😍 great I am a NEET aspirant and this video is very helpful for my knowledge 🎉
wow, i finally understand this after three years. BLESS you
Thank you very much 🙏🏻
-Iraqi medical student
wow this is wonderful
i had no trouble understanding
Trying to pass my Med-Surg class, this helped a lot. Thanks!!
Trying to pass my highschool anatomy class lol good luck
This video is surprising well explained. Thank you ma'am for your efforts. This helped me a lot to understand the portal system and to complete my syllabus😁
what a great video. needed to understand this for my nursing classes and I understand better after a 5 minute video than a 4hr lecture, thanks
Wow didn't expected this would be worth watching fr I just randomly clicked on it and I don't regret it
Thanks , after 20 year of medical practice, understood why portal is a portal
Thank u so much... Stay blessed
It’s a great way to explain
So detailed 😊
Better than my Bio teacher
Simple and so clear
Thank you🌻
Awesome! Easily explained!! Thanks a lot dear!
some suggests that renal portal system ...but it discusses that to be incorrect .
very important explanation
thanks to this medical media ✌️
GREAT EXPLANATION👏🏻👏🏻👏🏻👏🏻
Well explained.
Only you explained the hypothalamus pituitary portal system.
Others just explain the hepatic portal system by default.
Excellent and splendid explanation
I love this video. It helped me to understand almost everything about hepatic portal system.
Best video on portal system🙏👌
the really nice explanation you have provided us with..............I'm really thankful for this to you
In a the common setup of the circulatory syestem, oxygenated blood from the heart flows through arteries to capillaries - the smallest blood vessels where nutrient and gas exchange takes place. A network of capillaries that nourish an area is called a capillary bed. Blood from capillary beds, now DE- oxygenated drains into veins to return to the heart. A portal venous system is a DEVATION from this configuration. It occurs when capillary bed drains into ANOTHER capillary bed BEFORE going back to the heart. It's a VENOUS system because the vessels that connect the two capillary beds are VEINS: they contain DE- oxygenated blood. With this arrangement, a portal system allows DIRECT transformation of substance from one organ to another WITHOUT spreading them all over the body. An example is the hypophyseal portal system, which connects the hypothalamus and pituitary gland. Hormones produced by the hypothalamus are SECRETED into the portal system to REACH the anterior pituitary, where they regulate production of pituitary hormones. But the better known portal system is perhaps the one that involves the liver. In fact, when not specified otherwise, the term "portal system" usually refers to the hepatic portal system. In the hepatic portal system, venous drainage form MOST of the gastrointestinal tract, plus the spleen and pancreas, pools into the portal vein to reach the liver, BEFORE returning to heart. This way, all substances ABSORBED through the GI tract(lower esophagus to upper anal canal), including nutrients, toxis and pathogens, are FIRST processed in the liver BEFORE they can reach the GENERAL circulation. The liver acts like a GATEKEEPER to the body, it serves two major functions in THIS context. First the liver processes the nutrients and regulates the AMOUNT of nutrients that can ENTER the blood. For example, after a meal, when glucose SPIKES from digestion of carbs, the liver converts EXCESS glucose into glycogen for storage. When the body is fasting, glycogen is converted back to glucose to be released to the blood. In other words, the liver CONTROLS the BALANCE of blood sugar, preventing excessive fluctuations. The free amino acids resulting from protein digestion are also processed in the liver, when they are synthesized into NEW proteins and pro-enzymes. EXCESS free amino acids, which can be HARMFUL, are converted to other forms of energy storage, or BROKEN DOWN to urea to be REMOVED in waste. This brings us to the SECOND function of the liver as a DETOXIFICATION organ. The liver SCREENS the blood for potentially toxic substances and pathogens, and REMOVES then BEFORE they can reach the rest of the body. It can, for example, remove alcohol and drugs from the blood. An important pharmacological implication of liver functions is that most MEDICINES administered orally are METABOLIZED in the liver, and MAY become DEactivated, before reaching the general circulation and TARGET organs. This is known as the first pass effect. For this reason, some medicines MUST be taken via OTHER routes to BYPASS liver metabolism. On the other hand, some drugs are SPECIFICALLY designed as Pro-drugs and must be taken orally, as they require CONVERSION in the liver to become functional.
Understood the concept very well, thank you!
This makes me feel bad for my liver, it does so much
i love the explanation and animation. Good work👌
Thanks a lot. Simplified explanation. 👌🏼👌🏼👌🏼
Very well explained!! 👏
❤❤❤❤
♥️♥️♥️♥️♥️😘😘😘😘😘😘
@@swapnilpawar2576 I bet you can explain any topic very nicely😘
thank you, great explanation.
Great thank you so much,in very few minutes you thought us very well .🤗
Thank you so much. This helped me finally put together pieces of multiple concepts and make sense of them.
Very good explanation ❤️ keep it up 👍🏻
Seriously great video!
Wow Wee. Just great. A perfectly economical and clear explanation.
Thanks a lot! Very well explained.
Well explained and helpful. Thank You.
Thank you😊
Thank you
Just wow 😳
Very easy to digest this topic 😉
Thanks
keep the good work
Amazing thank you 😃
You're welcome 😊
Oh, this video helps me so muchhhhhhhh,🌷 medical student first stage🥺💓🪐Thxxxx
very nice overview of the hepatic portal system
amazingly simply and clearly explained. Is all nutrient absorbed this way or some does absorbs strait from small intestine to the body?
INTERESTING VIDEO
God bless you
Well explained and understandable
Very good
Thank you very much much for this great video 😍😍😍😍
So well explained. Thanks
absolutely amazing, Thankyou so much!!
You're very welcome!
amazing explanation thank you so much
love your channel! God bless!
thank you a million times
Amazing video! Thank you!
Couldn't able to follow the explanation because of the subtitles which are hiding the explaining diagram part.
You can do subtitle off
That was amazing now l get it❤️
Great job ❤👍 many thanks
Great video. Thank you
Thank you that was amazing!
well understable
and i have requested that remove the screen writting during vidios we cant see the topic clearly....
Sadiq Urrahman this is for copyright concerns. I think it just distracts us but not anything that stops us from understanding the topic
Pay if you want it removed, there is the option
The liver is is giving oxygenated or deoxygenated blood to heart?
Thanks for this video making
Well explained
Wow. Amazing.
thx
Wow, well explained
V nicely expained 🌴🙏
Thnks
Thank you!!!!!
What does this mean....damped portal vein & elevated hepatic arterial resistive index? In terms I can understand. Thanks so much!
Thank you 👏👏👏👏👏
helpful
Thank you ma'am
Very thank you....🙏🙏🙏🙏🌻🌻🌻
Amazing 🤩
helpful animation! tq
really helpful😍
Nice
You are the best 😘😘
Super👌👌 then dry another video
👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻 thank you
When our liver is failure liver we need surgery for support liver?
You would need surgery to replace your liver with a healthy one from someone else (if you can find a donor). It's called liver transplantation.
@@Alilamedicalmedia can we need surgery to treat or donor?plz
how to treat portal venous thrombosis in cirrhosis liver with bilirubin of 5.2?
Please load disorder of circulatory system
That means that in the portal system .. the primary capillary bed exchange oxygen only while the second exchange nutrients and substances without oxygen ??!!!
very well explained .Can i use this video to explain this concept in local language?
You can add subtitles in your language to our video, but you may not download or upload to your channel. Thanks!
@@Alilamedicalmedia if I explain your video in my local language to my students indirectly I am promoting your videos with your watermark.They will follow your videos for english version.If you allow please .comment.....Thank you.
Sorry, it is not allowed.
@@Alilamedicalmedia ok
1:12
Nerde bu hastane ben gelebılırmıyım
Burası bir hastane değil. Yerel hastaneye gitmeniz gerekiyor.
Burası nerde babam için önemli lütfen yardım edin ben turkıyedeyım aynı hastalık portal ven damar tıkalı acılmıyo acılacaksa yardım edın bana
انا فدالوك❤
سبحان الخالق🌑
what about renal portal system !!
kap - ilary