Multiple choice

Heart beat is controlled by a nodal tissue made up of specialised cardiac muscles, which are called as _____________.

  1. Myonemes

  2. Purkinje fibres

  3. Telodendrites

  4. SA node

  5. Collagen fibres
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

It is a small, flattened and ellipsoidal mass of self excitatory nodal fibres embedded in the wall of right atrium near the opening of right anterior vena cava.

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