Bundle of His
Bundle of His
The Bundle of His is an important part of the electrical conduction system of the heart. It transmits electrical impulses from the atrioventricular node (AV node) to the point of the apex of the fascicular branches.
Anatomy[edit | edit source]
The Bundle of His is located in the endocardium, the innermost layer of the heart. It originates at the AV node and extends down the interventricular septum, dividing into two branches at the apex of the heart. These branches are known as the left and right bundle branches.
Function[edit | edit source]
The primary function of the Bundle of His is to transmit electrical impulses from the AV node to the ventricles of the heart. This ensures that the ventricles contract after the atria, which is essential for efficient pumping of blood from the heart to the rest of the body.
Clinical significance[edit | edit source]
Damage or disease affecting the Bundle of His can lead to a number of heart conditions. These include bundle branch block, where one or both of the bundle branches are obstructed, and heart block, where the electrical signal is delayed or blocked completely. Both conditions can lead to irregular heart rhythms, known as arrhythmias, and may require treatment with a pacemaker.
History[edit | edit source]
The Bundle of His was named after the Swiss cardiologist Wilhelm His Jr., who discovered it in 1893. His work on the electrical conduction system of the heart was groundbreaking and has had a lasting impact on the field of cardiology.
See also[edit | edit source]
Navigation: Wellness - Encyclopedia - Health topics - Disease Index - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
WikiMD is not a substitute for professional medical advice. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Contributors: Prab R. Tumpati, MD