Autonomic Pharmacology | Adrenergic Antagonists
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- čas přidán 8. 06. 2024
- Official Ninja Nerd Website: ninjanerd.org
You can find the NOTES and ILLUSTRATIONS for this lecture on our website at:
www.ninjanerd.org/lecture/aut...
Ninja Nerds!
In this lecture Professor Zach Murphy will be presenting on Adrenergic Antagonists within our short series on Autonomic Pharmacology. We hope you enjoy this lecture and be sure to support us below!
Table of Contents:
0:00 Lab
0:07 Adrenergic Antagonists Introduction
1:07 Adrenergic Neurons and Receptors
12:20 Adrenergic Target Organ Effects
24:47 Alpha 1 Antagonists
33:28 Alpha 1 + 2 Antagonists
49:48 Beta Antagonists
1:13:08 Beta 1 + 2 Antagonists
1:28:06 Beta + Alpha Blockers
1:40:30 Beta Blocker Overdose
1:47:30 Adrenergic Antagonists Practice Problems
1:58:54 Comment, Like, SUBSCRIBE!
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Pharmacology Source:
Whalen, Karen. Lippincott Illustrated Reviews: Pharmacology (Lippincott Illustrated Reviews Series). Wolters Kluwer Health. Kindle Edition.
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You are quite literally the greatest educator that has ever graced the planet earth. You have a PhD+ level of understanding of every topic you cover, yet you know how to communicate it succinctly and simply. You were born to teach.
I agree he’s incredible - a genius for sure... not taking anything away - however, Jesus is the greatest teacher On earth ever in fact he is still teaching people worldwide how to live with purpose 🙏🏻
@@desleykakoulidisgallaway3382 yeah, but Jesus didn't teach me anything about alpha-1 antagonists in the Bible
😊😊
It was due to your teaching I passed my 1st Year MBBS with 75% and got 2nd Rank in my College. All set to ace 2nd Year with your lectures Dr. Zach. You deserve all the respect and love from all the students all over the world. A big THANK YOU to you!!!!!
Just a lil correction, the adrenal medulla produces or pumps out 80% epinephrine and 20% Norepinephrine (4:1 ratio)
Thank you for your beautiful work😍
at 29:13, shouldnt it be urine retention instead of urinary incontinence?
I love how no matter what level of understanding you are at, you can always keep up with the video and clear your concepts. Thanks u Soo much!!!
Your videos are literally among the best in the medical field! You made pharma so much easier to understand!
You are the savior of me and many students out there!
you're my lifesaver. I could not get through my nursing career without you.
Best pharmacology lectures on CZcams
Great lecture overall, but one mistake at 9:48: the adrenal gland secretes epinephrine and norepinephrine at a 4:1 ratio. Thus, 80% of secretion is epinephrine and 20% secretion is from norepinephrine.
I cannot express my gratitude and admiration, you are amazing!
Thank you so much. I passed my exam today, depending on you. Thank you, professor
I always find your videos interesting and I like how you describe things keep up the good work
u deserve all the best
I hope this channel hits the 10 million subscribes , lots of effort and time spent while constructing it
every time I meet my other medical student friends I tell them about this channel so I can help growing up this amazing work ,I hope I could help in more
THANKS ALOT ❤❤❤
I have no words to express my gratitude to you! You are amazing!!!
There is no words to say who u are how u are and what you are u r demigod u ur patience your hardwork and your teaching style words cannot describe how I felt like u know everything every topic we r blissed to have u tq so much 🙂👍🤗
An interesting fact about beta blockers is that they can be used as a doping agent on healthy elite sportsmen. During training beta blockers maintain a reasonable cardiac output and muscle perfusion increasing performance as a conditioning agent. During training under normal conditions an increased cardiac output will increase blood pressure only to a threshold where the ventricles need enough time to fill their chambers with blood. If the heart rates increases beyond the threshold the ventricles will fail to pump the 125 ml per contraction. This will reduce tissue perfusion due to a lower mean BP.
The beta blockers can keep the heart rate below the threshold effectively during training.
This is why beta blockers are banned in competitive sports and considered a doping agent by the IOC.
Sir you are amazing. Can't thank you enough for your teaching. Inspiration!
I am guilty in being addicted to ur lectures ，no words can describe how much I am grateful for ur hard work and fab lectures😘
I already was passionate by phisiology and pharmacology - but u guys u made me head over heels about it. Congrats in everything you do. Helped me see things in such a easier way - even though really detailed
Amazing video! Extremely helpful
My understanding level after watching your videos 📈
You'll be the reason why I'll pass my pharmacology subject. THANK YOU SO MUCH
I thank you sir for your spectacular and remarkable lecture I must confess u are a legend
love your content bro, you are a wonderful human being. thank you.
You made this course right when I took pharmacology. You are amazing my friend thank you
Thank you so much without you I would fail every pharmacy exam I've ever had❤️❤️❤️😭😭😭
Thank you so much for this great explanation
UNBELIEVABLE HELPFUL!!!!! THANKS A LOT IS THE MINIMUM ...CONGRATS
Thank you so much Dr. Zach for your very informative videos,bcoz of your channel I passed the Veterinary Licensure Exam just now🥰u were such a great help to my basic understanding of physiology and pharmacology😊. I will surely share your channel with the future examinees of VLE.THANKS AGAIN AND GOD BLESS😇😇
A "lil break"?! LOL You came back with a fresh cut and everything!! Love it !! Great Video!!
Marvellous! Absolutely Marvellous!
Really thank you!! You are the savior ,Sir 😊😊
Preparing for prometric exam and very very useful
Thanks this helps tremendously
Was of great help. Thanks nerdy
Still the BEST lecturer in CZcams
You never Disappoint.. keep it up man ❤❤
fantastic lesson
Zach - when you are talking about Alpha1 antagonist drugs on the bladder with BPH (e.g. the -osins), don't you mean the indication is urinary RETENTION (2ndary to BPH) not incontenance? I though the idea was with BPH, we get relaxation by the A1 Antagonists, allowing relaxation at the prostate and internal sphincter, which allows for easier urination...
you're right
splendid we need more pharmacology
Thank you all as always for all of your great work and effort. I have a question, wouldn't alpha blockers be treating urinary retention/obstruction in case of BPH and not incontinence ?.
Yes ..same doubt ,it should treat urine retention
Life saver fr, bless you man
well explained!🙏
Thank U Boss for Everything ❤❤❤
Muchas gracias por sus videos ❤
My pharmacology exam is Thursday👀
Great work keep going 💙
Thank you!
You are intelligent. Thank you ❤
🤩🤩🤩thank you so much , i love you Channel . Keep going . May God bless you and your team ❤️
Thanks ❤
Bro said "had to take a lil break" = returns with different haircut. LOVE THE VIDS, all the way from SPAIN. I watch your vids at 2x to get a quick recap
Hello and thank you for explaining everything so well. I was wondering how NE and E affects the receptors if they ever do overcome their natural affinity?
huge airdrop in my medical base
May you be rewarded sir 👌🏾🔥
Thank you guys
You are a very good videographer.💯❤
Awesome!!
Thanks!
thank you a lot
Very good
Thanks
You are great ! 🤍👏🏻
@29.03 min you said urinary incontinence..it should be urinary retention due to bph?
He made an honest mistake, and you are right, it helps in urinary retention because it relaxes the internal urethral sphincter and thia causes urination
Nice one
We love you
Keep it going❤
great sir
Thankyou Ninja Nerd
You are fantastic
ninja , you are the best . I wish I could be your direct student.
Thank you so much! Awesome explanation. Just an observation/question : Are alpha 1 blockers used for incontinence? Aren't they used for retention instead?
i think alpha 1 inducers retain the urine other hand alpha 1 blockers blocks or stops the activity to treat retention.
you're right
No words bro❤❤❤
love it!:))))))))))
YOU ARE THE BEST :)
awesome lecture, 28:21 our cute little sphincter muscle 😂
Sir is Harrison principal of internal medicine 19th edition is good for study medicine ? .... I mean I'm unable to buy 20th and 21st edition .... So is it okay to study from edition 19 ? ... Is there any major difference in these editions ?
Hey Thanks dear!Please teach us Biostat also !
You may be what gets me through school.
happy teachers man
Where would you fit demetotomidine and clonidine?
having the pathogenesis of pheochormocytoma in mind, why don't we use alpha-1 antagonists and but 1+2?
Getting me ready for CRNA school interviews over here
Love u 3000 ❤️
We are Ninja Nerds 🥷
I'm not even a med student but I love how you explain things 💝 Have you ever done a video on Biotinidase Deficiency or partial due to genetics or meds?
hello professor! can you please explain the relation why erectile dysfunction will be an adverse effect of b-blockers? first aid stated it and im trying to find the correlation
Maybe from vasoconstriction of blood vessels by excess a1 stimulation and b2 blockage on vessels leading to less blood going to penis to cause erection. Maybe maybe.
Thank you, but u didn't cover the B2 blockers in this video. Are u going to prepare another video for this?
ur the best!!!!! med-1 student here:)) i literally skipped all my pharmacodynamics classes to follow along with you, and it was the best decision I ever made!
you are awesome 😎
God bless you for me
Hello! Love your videos! I think the notes on the website and the written values on the video might include a typo. In lecture and web searching we are given EPI and (80%) produced and NE (20%) in a 4:1 ratio not flipped as shown in the video. Also the notes you give on the website also show NE being produced by the adrenal medulla twice. Not a huge deal but just wanted to give that feedback. There were some other things with other lectures I have noticed (minor details), and if there is a better way to inform about these please let me know!. Great Stuff all in all though!
Can you please 🥺 upload more lecture on pharmacology..
We dont prefer alpha 1 blockers forHTN bcz it decreases BP markedly on working at urinary bladder sphincter by micturition is it right concept so we should prescribe it when HTN+ BHP together
life saver,,,,i dnt know how to get your notes......csn you please tell me sir..
Im on Labetalol for hypertension as mine spikes above 180/120 regularly, currently on 9 tablets aday and have to take extra when I have a hypertensive crisis, I also have Intracranial hypertension and am on Topiramate. Still being investigated for causes Im only 32 though do have multiple endocrine problems, possible Pheochromocytoma or pituitary tumour.
Sir, you made a mistake at 9:41 when you tell that NE is the 80% released by Adrenal Medulla while it is the other way around. It is 80% EPINEPHRINE that is released by ADRENAL MEDULLA.
Would you hold an A1 blocker if the patient has BPH but is hypotensive?
good question
Give bethanecol (muscarinic agonist)
can you make some on anti-depressant
sir,,why in pharmacology playlist some topic is not there
Hard🔥🔥
Love❤❤❤❤❤❤
can you teach us more about pathology
Happy Teachers day 🎉🎉🎉🎉🎉🎂🎂🎈🎉🎉🎉🎂🎂🎉