NEET Biology | Circulatory System - L6 | Human Heart and Circulation | by Dr. Vani | Vedantu 

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Video starts at 2:39

"CONDUCTION SYSTEM OF ♥ HEART- Group of specialized cardiac muscle cell in walls of heart . Main components of conduction system are :- 1) SA NODE 2)AV NODE 3)BUNDLE OF HIS 4)PURKINJE FIBRES Conduction start from SA node - AV node - bundle of his - Purkinje fibre. NERVES AFFECT RATE OF HEART 💕vagus nerve which innervates autonomic nervous system - 1) SYMPATHETIC NERVOUS SYSTEM( ON LEFT SIDE)- which increases heart rate by releasing epinephrine or nor epinephrine 2) PARASYMPATHETIC NERVOUS SYSTEM - decreases heart rate by releasing acetylcholine."

Superior vena cava+inferior vena cava➡right artria➡right ventricle➡pulmonary artery➡lungs➡pulmonary vein➡left artria➡left ventricle ➡aorta➡body parts😎😎😎🙌🙍🙌🙋🙋

Mam I am student of class 7 but i can able to understand all that things that you covered in this video just because your teaching. Thank mam😊❤💜😀

1) Cardiac sustem is a group of specialized cardiac muscle in the walls of heart

6:50 pericardium is divided into 2 layers.. 1. outer fiberous pericardium 2.inner serous pericardium 2.1.parietal layer 2.2.visceral layer

Excellent way u teach this whole big process in just 32min

Thanku so much mam....its a very easy explanation that we undrstnd carefuly....

I m selected in medical college this year but still watching video lectures.. 😂😂

Two nerves which affect heart rate are:- 1.sympthatic nerve 2.parasympthatic nerve😚

1. Conducting system of heart (a) SAN impulse generation (b)AVN generation (C)AV bundle impulse conduction (d) purkinje fibres impulse conduction (2) nerves (a) Accelerate = sympathetic nerve (b) Inhibitor = parasympathetic nerve.

This feel like we are doing online classes whenever say understand I say yes ma,am many Time

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This mam deserves more than respect 💙❤️🧡💛💚💜

Thank you mam🥺🥺🥺for me truly and honestly it is such tough and boring 😅😅 point but honestly I continuously watched it without any Break because I can get it in my mind 😁❤️✊ TQ once again..

I am in 10th class but to study heart and circulatory system I came to Vedantu NEET for learning. Thanks for such good explanation 😎😎

I m watching this video 1 day before my NEET exam..😂😅😂 and now i understood whole chapter... Tnx mam

Thanks mam for this awesome lecture

It's simply awesome dude....speechless 👍🏻

Nice

Nice mam

1st time, I understand all the mechanism in simple way. ❤❤❤❤❤

Thank you for making the concepts clear. Huge thanks to u ma'am ❤️ i finally understood the topics. 😇✨

Mam plzz aap thoda depth m bhi pdhaya kro Aiims k according.. Btw again a simple nd an amazing cls 😊

Nerve which affects heart beat is sympathetic and perasympathetic nerve mam

SA node➡AV node➡bundle of his➡purkinje fibres.

•SA Node •AV node •bundle of his •purkunji fibre ○sympathetic nerve ○parasympathetic nerve

1.Sympathetic and parasympathetic are the 2 nerves that affect the rate of heart 2.conducting system of heart is a special cardiac muscle that signals to the heart muscle causing it to contract... Main components are S.A NODE (pacemaker ) ,A.V NODE (PACESETTER),bundle of his and Purkinje fibres MAM as always the lecture was awesome.....ab feel aa rha hai ki is baar neet phod denge.....thankyou mam😘😘😘😘

conduction sys. start SA Node - AV Node - Bundle of his - Bundle Branches - Purkinje Fibres.. Heart rate is controlled by the 2 branches of the autonomic nerve sysytem. SAN & PNS. SAN Release the hormones - (Cotecholamine, epinepherine, nor epinepherine) the Accelerate the Heart Rate....

HELLO MAM, WISH YOU A PROSPEROUS LIFE AHEAD ❣ ANSWERS FOR THE PRIOR QUESTIONS - 1. CONDUCTING SYSTEM OF HEART HAS FOLLOWING PARTS- S.A NODE (NATURAL PACEMAKER, maxi. rate of impulse generation, 72 beats) ➡ INTERNODAL PATHWAY ➡A.V NODE ( mini. speed of conduction, 40 beats/min.) ➡BUNDLE OF HIS ➡ PURKINJE FIBERS (Rt & Lt, maxi. rate of speed of conduction, 18-25 beats/min.) 2. NERVES WHICH AFFECT OR REGULATE THE HEART BEAT ARE - * from the cardio-acceleretor centre, a pair of SYMPATHETIC NERVES go into S.A NODE increasing the rate of heart beat. * from the PARASYMPATHETIC NERVE FIBERS, hormone ACETYL-CHOLINE is secreted which decreases the rate of heart beat. ❣💜❣

Mind blowing brilliant awesome teaching With no confusion

the deoxygenated blood in the right atrium goes to the right ventricle through the tricuspid valve and goes to the lungs through the pulmonary artery and gets oxygenated in the lungs. The oxygenated blood comes to the left atrium through the pulmonary vein and goes to the left ventricle through bicuspid valve and then to the body through aorta.

Brilliant Video.. Great Explaination.. Helps to understand complicated topic very easily ...

I really appreciate your efforts. May Allah bless you.

Thank you mam for this vedio you explain very well🙏

Ma'am thank u so much for making biology

I like your teaching mam

Tq u so much mam

🤗🤗🤗 excellent mam pura amajh me as Gaya. Mam meri eak request hai. Maine bahot sare apps cheak kiye but vedantu best hai . mam currently I am in class 10 to kya Aisa nahi ho Sakta ki along with my regular studies Mai 11 class ki biology side by side vedantu ke videos dekhkar khatm kar duu?

The pulmonary vein which have mentioned in ur diagram is actually the inferior vena cava which collects deoxygenated blood from the lower part of the body not pulmonary artery

Namaste mam I am new student for our live session biology you are my best teacher

Av node generate 55-65 impulse per min.And purkenje fibre can also generate 25-30 impulse per min.

Nobody in the world teaches better than u mam...

Mam you are best teacher for Biology ever ..In 1 month I can't understand how heart work but after this video I can teach a student...

Ty mam🙏

I am a college student ( going to second year). Honestly please don't say auricles , it is called atria. Auricles are appendages , atria is the chamber! Also it is called inter atrial septa.

Excellent

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Herat beat affected by SAN and AVN

Tnku mam

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Sympathetic and parasympathetic nervous system can change heart rate

2) sends signals to the heart muscle causing it to contraction 3) main component of the cardiac conducting system is SA node, AV Node, bundle of his, purkinje fiber

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Mam that you told the pulmonary artery that is a inferior vena cava

Your lecture is absolutely awesome mam! and it really made me simple to learn the conducting system of heart because of you!! Thank you so much ma'am☺️

Thank mam...very fast revision 😍😍😋😋

Thanku so much .....you are awesome mam ..... 😍😍😍😍 eid mubrk

Mam so amazing and energetic class... Everything gets inserted in my brain. Got it superbly

Hey.....waiting..... this live session VANI MAM.... AWESOME THIS COVER IMAGE .👍👍

Mam plz put respiration and circulation of 12th class please mam

Very energetic you are, Mam!!

Thank you soo much mam! u explained in a simple and easy way.

Conducting pathway:- SA NODE - INTERNODAL PATHEAY -AV NODE - AV BUNDLE - PURKINJER FIBRE Two nerve which affect the cardiac system which is following:- 1) SNS - inc. rate of heart beat by releasing nor epinephrine hr. 2) PSNS - dec. rate of heart beat by releasing ach hr.

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Mam aap bhut accha pdati h

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*Supercoooooool classs thi aaj ji mam biology Queen **#Vani** Maam😊😊😊*

Thankyou ma'am💯💯🔥🔥

Mam am I right that the fastest conduction of impulse takes place in purkenje fibre

Excellent...

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With all due respect You have marked the inferior vena cava as the pulmonary artery ma'am.

Mam What is Curoculer appendix

So easy chapter ma'am thank u so much ma'am u are the best

Very nice ma'am

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2 question answer arteries and viens

Very nice lecture.

TWO NERVES WHICH AFFECT THE HEART RATE ARE:: 1.SYMPATHETIC NERVES- Increas the heart rate 2.PARASYMPATHETIC NERVES-Decrease the heart rate

Glamorous lecture

Mm Is very energetic for Circulation system of heart🤣🤣🤣

Well explained Ma'am, thanks

Thank you soo much mam❤

Superb mam

All clear mam .thank you so much mam . first time clear circulation....

Thank u mam

You clear my all doubts mam 😊 Thanku mam 😊

You deserve a huge respect mam crystal clear thank you 😊🙏

Why did u mismark the inferior vena cava ??

Main component are SA node and AV node

Two nerve affecting the heart rate symphathatic nerve and parasymphatic nerve

Not clear yet

Thanks mam...awesome lecture

Thanku so much ma'am...for clearing concept...🙏🙏