GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
3. | Which of the following statement best describes the function of sinoatrial node? | |
A. | It sends out electrical impulses to ventricles to contract. | |
B. | It is present at upper end of the left atrium | |
C. | It consists of small number of diffusely oriented cardiac fibers. | |
D. | It sends out electrical impulses to atrial muscles causing both atria to contract. | |