KCET · BIOLOGY · STD 11 - 15. Body Fluids and Circulation
Left auricle receives pure blood from the
- A pulmonary veins
- B pulmonary artery
- C superior vena cava
- D inferior vena cava
Answer & Solution
Correct Answer
(D) inferior vena cava
Step-by-step Solution
Detailed explanation
(D) superior vena cava,
The sinoatrial (SA) node, also known as the pacemaker of the heart, generates electrical impulses that initiate each heartbeat. These impulses cause the atria to contract and set the pace for the heart rate, maintaining the frequency of heartbeats.
The sinoatrial (SA) node, also known as the pacemaker of the heart, generates electrical impulses that initiate each heartbeat. These impulses cause the atria to contract and set the pace for the heart rate, maintaining the frequency of heartbeats.
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