Number of action potentials that can be generated by sino-atrial node is

Which of the following statements about conducting system of the heart is INCORRECT ? I. Mass of nodal tissue seen in the lower-left corner of the right atrium is the sinoatrial node. II. The nodal musculature can generate action potentials only in response to external stimuli . III. The number of action potential that could be generated in a minute varies at different parts of the nodal system . IV. The SAN can generate the maximum number of action potential , i.e., 80-85 min^(-1)

Which of the following statements about conducting system of the heart is INCORRECT ? I. Mass of nodal tissue seen in the lower-left corner of the right atrium is the sinoatrial node. II. The nodal musculature can generate action potentials only in response to external stimuli . III. The number of action potential that could be generated in a minute varies at different parts of the nodal system . IV. The SAN can generate the maximum number of action potential , i.e., 80-85 min^(-1)

Action potentials are generated due to

Action potentials are generated due to

Assertion: The nodal musculature has the ability to generate action potentials without any external stimuli, i.e., it is auto-excitable. Reason: The number of action potentials that could be generated in a minute very at different parts of the nodal system.

Statement 1: Atria receive blood from all parts of the body which subsequently flows to ventricles. Statement 2: Action potential generated at sino-atrial node passes from atria to ventricles.

Read the following statements and choose the correct option Statement 1 : Atria receive blood from all parts of the body which subsequenctly flows to ventricles. Statement 2 : Action potential generated at sino- atrial node passes from atria to ventricles