Question

diff between purkinji fibers and bundle of hiss​

Answer 1

Answer:

Bundle of His is the main conduction fiber group reaching the ventricles from the atrioventricular node. Purkinje fibres are the final common pathway for the controlling impulses from the sinoatrial node to the heart muscle cells to maintain regular contraction

Explanation:

• The key difference between Bundle of His and Purkinje Fibres is that Bundle of His is a collection of specialized heart muscle cells for electrical conduction while Purkinje fibres are thin filaments originating from the left posterior fascicle and left anterior fascicles that help in distributing impulses to the ventricular muscles.

• There is an electrical conduction system in our heart, which is known as the cardiac conduction system. It generates and propagates electrical impulses in order to contract and relax the heart in a rhythmic way. It comprises of SA node, AV node, Bundle of His, left bundle branch, right bundle branch, anterior and posterior fascicles, Purkinje fibres, etc.

• Bundle of His receives impulses from the AV node. It is a collection of thin, specialized muscle cells. Bundle of His further divides into left and right bundle branches. Left bundle branch again divides into left anterior and left posterior fascicles. These left anterior and left posterior fascicles give rise to Purkinje fibres, which are thin filaments that distribute impulses to the ventricular muscles.