Question
S.A. Node and A.V. Node.
| S.A. Node | A.V. Node |
| 1. Sinoatrial node is present in the right ventricle near the opening near the opening of the superior vena cava. | 1. Atrioventricular node is present in the right ventricle near the opening of the coronary sinus. |
| 2. S.A. node is the pacemaker of the heart and it starts atrial systole. | 2. A.V. node starts ventricular systole through bundles of His and Purkinje’s fibre system. |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Sr. No. | Type | Examples |
| 1 | Vulnerable species | Clouded leopard, Musk deer |
| 2 | Great Indian Bustard, Hawiian monk seal | |
| 3 | Three banded armodillo (Brazil), Short eared rabbit (Summatra) |