Physiological Anatomy of Cardiac Muscle - Structure & Types

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Physiological Anatomy of Cardiac Muscle - Structure & Types:
Multiple cardiomyocytes connect at intercalated discs, to make cardiac muscle.
Inside, they have myofibrils, and transverse-tubule system‒ similar to that in skeletal muscle.
The special thing is: the large number of gap junctions at the intercalated discs, make the cardiac muscle a syncytium.
The atrial and ventricular syncytium are separated by fibrous tissue‒ called the atrioventricular ring.
Excitatory and conductive fibers, play a role in controlling rhythm, and don't participate in the contractile process much.

Chapters:
00:00 Intro
00:19 Types of Cardiac Muscle
00:42 Structure of Contractile Muscle Cell
02:08 Intercalated Disc & Syncytium
03:06 Atrioventricular Ring
03:55 Excitatory & Conductive Fibers
04:22 Summary

Dr Vipul Navadiya
Nonstop Neuron
Medical Animation
Medical Animation Videos
Physiology

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