Exams › NEET › Biology

How many nodes are found in heart of human?

1. one
2. Two
3. many
4. None of the above

Correct answer: Two

Solution

The human heart has two main nodes in its conduction system: the sinoatrial (SA) node and the atrioventricular (AV) node. These coordinate the heartbeat by starting and passing on electrical signals.

Related NEET Biology questions

• Hemoglobin in the RBCs helps in the
• consider the following statements each with one or two blanks. (i) The ascending limb of loop of Henle is impermeable to (1) but allows transport of (2) (ii) (3) and (4) play a significant role in producing a concentrated urine. (iii) A fall in glomerular blood flow/glomerular blood pressure/GFR can activate the JG cells to release (5) Which one of the following options correctly fills the blanks in any two of the statements?
• Secretin stimulates secretion of bicarbonate from
• The upper chambers of the heart are called
• Dialysis fluid contains all the constituents as in plasma except
• Red blood cells

⚔️ Practice NEET Biology free + battle 1v1 →