Urine Concentration and Dilution | Countercurrent Multiplication

Рет қаралды 520,076

7 жыл бұрын

#urine #urinetest #drnajeeb #medicines #pharmacology #medicaleducation #drnajeeblectures
Urine Concentration and Dilution | Countercurrent Multiplication
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(0:00-14:46)
Concepts of Hypo- & Hyperosmolarity; understanding the purpose behind urine concentration and dilution by the kidney.
(14:47-28:35)
Mechanisms of concentration and dilution of urine:
1-Medullary Interstitial Hyperosmolarity (MIH) [Cortico-Papillary Osmolar Gradient]; outline of its mechanism of production and maintenance.
2-Role of ADH as the second mechanism of concentration & dilution of urine.
(28:36-54:50)
Mechanisms of concentration and dilution of urine continued:
1-Development of Medullary Interstitial Hyperosmolarity (MIH); Counter Current Multiplication Mechanism.
(54:51-1:03:26)
Development of MIH continued; Urea Recycling in Renal Medulla.
(1:03:27-1:10:47)
Maintenance of Medullary Interstitial Hyperosmolarity (MIH); Vasa Recta's Counter Current Exchange Mechanism/System.
Comparison of Counter Current Multiplier & Counter Current Exchanger System.
(1:10:50-1:28:55)
Mechanisms of concentration & dilution of urine continued:
2-Role of Anti Diuretic Hormone (ADH); enhancing water permeability in last part of nephron.
(1:28:56-1:47:40)
Recapping the concept of concentration & dilution of urine with the help of an example of a person's thirst and water intake in differing environments; emphasis on effects of ADH on the nephron.
(1:47:41-1:57:57)
Explanation of "Ratio of Tubular Fluid Osmolarity (TF) to Plasma Osmolarity (Posm)" at different points along the nephron; emphasis on the role of ADH.
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@DoctorNajeeb 5 жыл бұрын

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Already member

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You explained this in one 2 hour lecture better than my instructor did in 3 class periods. I am so glad I found your page.

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In this lockdown era where most of the offline institutions are closed you came as a blessing in my life sir 😭 literally watched 9 videos but still couldn't gain full control over this topic ...but after watching this 120 min video ... I'm much confident of this topic...thank u sir 🙏🏼😭

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Thank you so much. Stay blessed ❤️❤️

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@neershah4467 Жыл бұрын

1:10:12 difference between contercurrent multiplier and counter current exchanger system.

@snivellus15814 3 жыл бұрын

I can’t thank you enough sir for making counter-current mechanism this easy and convenient. I am going to appear in my 1st professional examination and understood this for the first time. Thank you again

@dezangwangchuk8756 3 жыл бұрын

Erudite explanation. Love from Bhutan. I am a vet Doctor. Thank you for making it crystal clear. Allah bless you always 🙏🙏🙏

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His way of teaching is dressed with consummate elegance. Madly in love with the beauty with which our body works ,only because of your sir. Thankyou.

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SIR YOU HAVE CONTRIBUTED A LOT TO MY MEDICAL SCIENCE KNOWLEDGE. THANK YOU SIR AND LOTS OF LOVE FROM ME .

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I have read this topic 3times from book i didn't understand this topic. But from this vid i have understand this topic first time. Thank you so much sir❤

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I love your explanations! You make school a lot easier! Wish you posted all videos on youtube!

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@SonaliDas-qq2oi 3 жыл бұрын

I understood this mechanism for the first time in my life.. thank you so much sir..take lots of love ❤️

@DoctorNajeeb 3 жыл бұрын

You are most welcome. Hope this helped you. Stay blessed. ✨✨

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dr najeeb was the reasom to make me like medicine again and since ive been watching urinary systems videos i like to be a nephrologist

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Now i really know what is the function of vasa recta.. Thank u sir👍🏻

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Sir you are not a teacher of physiology..you are such a god of physiology 🔥🔥🔥🔥🙏🙏🙏

@DoctorNajeeb 3 жыл бұрын

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@algorithmofphysio 2 жыл бұрын

Platinum, Gold, Diamond quality lecture, Just amazing and absolutely superb concept of Counter current mechanism. Easy and Crisp knowledge. Thank you so much Sir, love You a lot. 💜💚❤️💛💙

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Most welcome!❤️ Stay blessed❤️

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One of best teacher the world has ever produced.......lots of love from india sir ❤️❤️❤️

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Thank you for all the love and respect dear️❤️❤️

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Tomorrow is my Physiology 1st professional exam.Now I am here.I have watched the video before as well.But I have came here for my revision.Thank you so much sir.

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Ap.kha se mbbs karti h o

@muskansingh7372 3 жыл бұрын

I studied counter current system earlier also but never understand that Today im feeling nice after seeing video and clearing my basic doubt and misconceptions also which i understood wrong earlier Thank u sir 😘😘😘😘😘

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Thank you so much sir you made tough subject simple and lovable

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THANK YOU SO MUCH DR. NAJEEB. GOD BLESS YOU.

@DoctorNajeeb 11 ай бұрын

You are welcome❤️

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Thank you so much Sir for this very high-yield lecture! More power to you!

@DoctorNajeeb 2 жыл бұрын

You are most welcome. Stay blessed❤️

@Akhter791 6 жыл бұрын

very talented teacher

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awesome sir'..love from India

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Sir really thank you for your lecture iam an veterinary students your explanation was very good for my exams and also your explanation on rodents was very nice iam glad to watch this video sir 🎉🎉

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It's my pleasure to have such great students. Thanks 💯

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@@DoctorNajeeb ❤️

@yawarali4246 2 жыл бұрын

Jazakallah sir....... EAST OR WEST DR. NAJEEB IS THE BEST❤❤❤❤❤❤

@DoctorNajeeb 2 жыл бұрын

Thank you for the compliment! Keep learning and stay blessed ❤️

@user-fh8zp5kl2k 7 жыл бұрын

thank you doctor

@mehreenghouri4332 4 жыл бұрын

lots of respect for you sir☺️🙏

@afaqahmed6394 5 жыл бұрын

Great sir najeeb...pride of KEMU😍😘

@sakshichaturvedi5704 Жыл бұрын

Each and every second is totally worth 👍

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Thank you soooo much ,you made my day🙏🙏

@suryateja4873 4 жыл бұрын

Truly awesome najeeb sir! You are a gem

@nrmlyaroy7135 3 жыл бұрын

Really wonderful lecture ❤️❤️❤️🔥🙏👍❤️❤️❤️

@NoorFatima-jd6xm 2 жыл бұрын

Sir you're a blessing for all medical students May God bless you

@DoctorNajeeb 2 жыл бұрын

Likewise! ❤️ Stay blessed ❤️

@sanjaylukney 6 жыл бұрын

excellent explanation

@minumohan6025 3 жыл бұрын

What a nice presentation sir.

@neetbiologybyshivsir4521 Жыл бұрын

Truly , You are THE GREAT GREAT GREAT teacher.

@DoctorNajeeb Жыл бұрын

Thank you! ❤ Stay blessed ❤

@rohannarang4057 6 жыл бұрын

u r just awesome hats off to you

@rosaceae6748 Жыл бұрын

Awesome lecture sir . Love from India 🇮🇳

@DoctorNajeeb Жыл бұрын

Thanks for the love 💘

@asmanoor6212 6 ай бұрын

In medical colleges they use to read slides while giving lecture...but you are great, you teach with your skills. I really appreciated your efforts, thank yoh so much❤

@suramsingh7127 4 жыл бұрын

You are really a gem sir..

@lukkaraghavendrarao Жыл бұрын

King 👑 of physiology love you sir

@DoctorNajeeb Жыл бұрын

Love you more dear❤️ Stay blessed ❤️

@sakshidang4733 6 жыл бұрын

thankyou sir u make things so easy and reduce our efforts thanku very much

@ayomkuot5580 3 жыл бұрын

Mr. Dear teacher could you do respiratory semiology as well as endocrine semiology..... Thanks and answer me, you are gifted.

@rimplekour3882 3 жыл бұрын

No one can replace u😊😊

@himanishgoswami3235 4 ай бұрын

I am a final year Nephrology resident, and I cannot tell you how much this helps.

@DoctorNajeeb 4 ай бұрын

Glad to hear that 😊 Stay blessed ❤️

@asifkhanpathan41 5 жыл бұрын

God gifted skills otherwise not possible

@Shiraz687 6 жыл бұрын

Thanks

@devinsoelberg5684 6 жыл бұрын

Thanks Dr. Najeeb!

@tishadevi1177 5 жыл бұрын

fantastic explanation

@jyotsanamrinal4914 4 жыл бұрын

Sir what to say! Understood counter current mechanism for the first time!!! It's quite weird to say but i am getting goosebumps 😅

@DoctorNajeeb 3 жыл бұрын

Thank you for your feedback. Keep supporting the hard work. ❤️🔥

@proyankayadavyadav5505 6 жыл бұрын

Thanku so much sir. .....

@dcbaabcd2063 4 жыл бұрын

Sir you are simply superb 🙏, 🙏

@SonuYadav-pk5pd 3 жыл бұрын

Thank you sir it was really helpful😍😍😍

@srirambhardwaj2343 5 жыл бұрын

Sir.your.lecture.is.very.informative.

@masterdoctor7442 5 жыл бұрын

Amazing sir Thank u so much

@mariammohammed7315 5 жыл бұрын

Thank you so much

@sheline143 6 жыл бұрын

very much helpful 😊😊

@moments000 5 жыл бұрын

Thank u sir🤗🙏

@spiritualhealer7670 4 жыл бұрын

Thank you very much sir .I am from India

@rashidhussain2632 Жыл бұрын

Excellent.outsatanding

@POOJAKumari-qm9bi 5 жыл бұрын

you are the best sir

@souravramgharia2583 2 жыл бұрын

After seeing this video my mcq score and concept increase understanding thanku so much

@DoctorNajeeb 2 жыл бұрын

Love it when students like yourself value my lectures and it really make me happy! ❤️

@TruthSeeker89 Жыл бұрын

along with knowledge, he teaches how to teach....thank you sir for making me good teacher

@DoctorNajeeb Жыл бұрын

It's my pleasure❤️ Stay blessed❤️

@srirambhardwaj2343 5 жыл бұрын

Excellent.explation.sir.

@santoshpachauri9464 4 жыл бұрын

Amazing class...sir

@tamimadnan7048 3 жыл бұрын

Huge respect sirr

@goshegoshe3199 7 жыл бұрын

Thanks for such an detailed and perfect teaching great piece of work please upload lecture on anatomy of kidney

@ghazalanoor8536 4 жыл бұрын

Wonderful teacher. I salute you.

@DoctorNajeeb 3 жыл бұрын

Thank you for your love and support.

@omisah827 5 жыл бұрын

Thanks Sir🙏

@Nursinglectureswithimtiazafrid 2 жыл бұрын

GREAT TEACHER OF THE WORLD

@DoctorNajeeb 2 жыл бұрын

Thank you💓

@farhazeenat1850 6 жыл бұрын

thanks sir