Multiple choice

The oxygenated haemolymph entering the heart is isolated by which of the following surfaces of the heart?

  1. Serous pericardium

  2. Sternocostal surface

  3. Fibrous pericardium

  4. Pericardial sinus

  5. Coronary sulcus

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

It refers to the wall at the back of the pericardial sac. It acts as a collection reservoir to isolate oxygenated haemolymph entering the heart.