[CVS] Q.5) Types of heart muscle:

Ans.

    a) Atrial muscle
    b) Ventricular muscle
    c) Specialized excitatory and conductive muscle fibers:
                                 i. SA node
                                ii. Inter nodal pathway
                               iii. AV node
                               iv. AV bundle
                                v. Left and right bundles of purkinje fibers