Do you know that there is a MASCULINE bundle in your heart!
Maybe that’s why men are associated with most things ‘heart’!
Both males and females have this ‘MASCULINE’ bundle! Of course it is only in name! The name is BUNDLE OF HIS!
Ok ok; I will not be HEARTLESS; I will tell you more about it!
The most automatic organ in the body is your heart! It has to RUN non stop and it can be RESTARTED after it stops! The question then remains from where the IGNITION or start of the heart beat occurs?
In 1839, Jan Evangelista Purkinje discovered a net of gelatinous fibres in the subendocardium of the heart. Walter Gaskell in the 1880s observed that the impulse of the heart began in the sinus venosus, and that this region had the most rhythmic ability!
Then later on conducting bundle between the atrium and the ventricle was found by Wilhelm His, Jr in 1893! (THAT’S WHY ITS CALLED BUNDLE OF HIS! NOTHING MASCULINE ABOUT IT!)
In 1906, Sunao Tawara found a “complex knoten” of tissue at the proximal end of the His bundle. He concluded that this was the inception of an electrical conducting system which continued from the AV node through the bundle of His, divided into the bundle branches, and terminated as the Purkinje fibres!
Finally the BEGINNING of the heart beat was found in the end!
Arthur Keith and Martin Flack discovered the sinus node which is the beginning of your heart beat!
The sinoatrial (SA) node is the heart’s natural pacemaker. In a healthy adult, its intrinsic resting rate is 60 to 100 beats per minute (bpm).
This specialized group of cells dictates your baseline heart rate, though it naturally adapts and increases during stress or physical exertion.
The rate of the sinus node varies depending on how the heart is functioning and the specific rhythm it produces!
If everything is normal then the heart will have a rhythm which is equal to the rate of beating of SA node! Which is why a normal beating heart is said to have the SINUS RHYTHM…
Heart rate also increases when you are excited! Or laughing! Which reminds me of that hilarious show called Dekh bhai dekh!
Which of course reminds me of Shekar Suman…
Now relax your heart and sleep!
Subh ratri…
ramadocblog 