Heart of Heart is
Pace maker of the heart is

Heart of Heart is or Pace maker of the heart is

Fill up the blank with appropriate words.Pace maker of the heart is _________ .

Describe natural and artifical pace-maker of the heart.

Describe natural and artificial pace-maker of the heart.

(a) What is the duration of one complete heart beat (cardiac cycle) ? (b) When do the sounds 'lub' and 'dup' occur ? (c ) Name the pace maker of the heart.

Give the reasons for the following statements : Sino-auricular node is commonly called pace maker of heart.