Human Heart: Structure and Working · NCERT Biology

The thick muscular wall that separates the right and left ventricles is known as the:

  1. Inter-atrial septum
  2. Atrio-ventricular septum
  3. Inter-ventricular septum
  4. Coronary sulcus
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Correct answer: Inter-ventricular septum

The left and right ventricles are separated by a thick-walled inter-ventricular septum. This prevents the mixing of oxygenated and deoxygenated blood.

Difficulty: Medium Question 9 of 20

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