Hemostasis Introduction
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- Опубліковано 28 лют 2019
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►👨🏫💊Antibiotics Lectures: www.medicosisperfectionalis.c... ... Check out my brand new "Electrolytes" course at www.medicosisperfectionalis.c... and use the PROMO code: ELECTROLYTES50 to get a 50% discount. Primary hemostasis is balanced on the dynamic harmonious antagonism between the smooth endothelium (that prefers laminar blood flow) and thrombocytes (which favor clotting and thrombosis).
Platelets are called thrombocytes "cells of thrombus".
The smooth endothelium is squamous epithelium that lines the blood and lymphatic vessels from the inside.
When platelets roll over the smooth endothelium, nothing happens.
But, once there is an injured endothelium, platelets adhere, activate and aggregate to form a temporary platelet plug (primary hemostasis).
Then, the coagulation factors are stimulated "thanks to subendothelial collagen, tissue thromboplastin and platelet factor 3), coagulation cascade ensues until fibrinogen is converted into fibrin fibers trapping the RBCs and forming a stronger thrombus (secondary hemostasis).
After that, fibrinolysis occur (thanks to tissue plasminogen activator or tPA) to destroy the clot and restore function and flow.
Get all of my notes here: / medicosis
Check my full playlist on "bleeding and coagulation" here: goo.gl/Dt41Bg
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To be able to answer exam questions, Try to think of primary hemostasis and secondary hemostasis as two separate entities. If you like my videos, please consider leaving a tip at www.paypal.me/perfectionalis/
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Cutting the vessel longitudinally is worse causing no back-flow pressure to happen, making handing the bleeding worse!
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Test your knowledge by answering these FREE cases about platelets and bleeding disorders, written by me: goo.gl/APUimj
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Professors and their PowerPoint 🤪
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Thanks for your great comment...Wait for Rheumatology videos every Saturday 🤩
he good for hematology not interfair on his you need to join another one he will make you to easy sorry don not mind,
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@@MedicosisPerfectionalis Overstimulated Broca’s area
جااامد يا ميديكوزس، انا شخصيا اتعلمت منك الكثير، بارك الله بك وفيك-
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The answer of the question is (B) okay ,and that's why? Our blood vessel's smooth muscles are in the shape of circle so if we cut longitudinally we cut the circle of the muscle so it can't be able to contract in a good way.....I hope I am true🙂🙂
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Thankyou for the minute details
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HELLO MEDICOSIS..CAN YOU PLEASE MAKE VIDEOS ABOUT: HIV/AIDS, Malaria, Hashimoto thyroiditis and severe combined immune deficiency.
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A is worse bcz vasoconstriction wont be useful, but in B it makes the endothelial cells closer i think
thanks for the video! amazing as usual
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Answer is B.and thank you very much 😍
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@@MedicosisPerfectionalis I already did that 🤩
Am a bds student it is helpful for me though... Thank you ur videos makes me understand the topic very well.... Thnx😊
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Medicosis Perfectionalis sure !
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And i think cutting the vessel longitudinally is worse based on my current knowledge on this topic
You’re absolutely correct 👍👍
@@MedicosisPerfectionalis is it because it doesn't have the back pressure?
@@collectingstars1 i think it's because the area of the injury is big enough than the vertical one
The transverse cut is more likely to result in cutting other structures like tendons and nerves. this is the answer provided by google about wrist wounds here the question is not about tendons and nerves it's about the vessels so longitudinal cut is a real pain in the butt because first technically it's always difficult to deal with (I won't speak here about stitching techniques) BUT even if it's perfectly done in case of a longitudinal cut there 's always a higher risk of thrombosis because of the narrowing (after stitching) of the lumen of the vessel; on the other hand transverse cuts are easier to deal with
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@@MedicosisPerfectionalis Yes, just a few minutes ago. Thank you so much. Or should I send my e-mail acc.here? It's krystlefugoso7@gmail.com
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Please. Can you tell me .What is a clot ?
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longitudinal cutting of the blood vessel is more dangerous because there is no backstopping endothelium and there is no back pressure. so the chances of you bleeding is more
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You’re so funny i like your videos please do more
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Thank you really 2020/9/2 4:00 a.m
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Longitudinal cutting of vessel
Please make vedios on gastro pathology.
Thanks for your feedback...Can you give me examples?
i think its the longitudinal blessure
True!
Thanks for the amazing video... Full of knowledge and laughter.... "why induce vasoconstriction, are you an idiot? To reduce blood loss" 😂
🤪😁😅
Genius ❤
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Why more water in ICF? I need answer this question
because you’re not a sponge...When I shake your hands, you don’t ooze water.
@@MedicosisPerfectionalis thank you very much
@@MedicosisPerfectionalis best answer ever
@@mohamedabdullahiazhary5794 the cytoplasm within the cells is mostly water and we are almost completely formed of cells
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Is it worse to have a transverse cut? Because it is perpendicular to the lines of something, I forgot ,,, anyways you end up with a scar ?
Tension lines...Is it?
you woke up and chose savage
Longitudinal cut is worse?
Why?
.
@@MedicosisPerfectionalis Because you don't have the back pressure from the blood! ...is that right?
Also, really wanted to thank you for making these videos, especially the leukaemia ones finally understood concepts haven't gotten in years
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Nice good information and presentation but very fast talking
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How you are amazing and fantastic to that extent 🤔🤔
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Cutting the vessel longitudinal
Why?
cutting the vessels longitudinally
Why?
@@MedicosisPerfectionalis cuz there's no back pressure ?\
Funny lecture 😂
Thanks 🙏
What am I doing with my life😂😂
😂😂
Longitudinal cut is worse.
Why?
Longitudinal cut is worse
Why?
on second thought the deeper the cut the longer healing.. longitudinal.. Longer longitudinal.. yes wait no
Why r we getting roasted bruv😂😂😂😂
Thank you 🙏
Transverse cutting is more severe 😂
!!!!_
Only Abū ʿAlī al-Ḥusayn bin ʿAbdullāh ibn al-Ḥasan bin ʿAlī bin Sīnā al-Balkhi al-Bukhari ( Ibn Sīnā ) could think about useless people in the theory of the black eye genesis 😅
transverse
Why?
Longitudinal incision is worse
Why?