A large groove that runs around the heart, and separates the atria from the ventricles is the
A) anterior interventricular septum.
B) posterior interventricular septum.
C) coronary sinus.
D) coronary sulcus.
E) cardiac fissure.

Question

Quizplus · Accepted Answer

The large groove that runs around the heart and separates the atria from the ventricles is called the coronary sulcus. Choice A is incorrect because the anterior interventricular septum is a wall that separates the two ventricles. Choice B is incorrect because the posterior interventricular septum is a wall that separates the two ventricles on the back side of the heart. Choice C is incorrect because the coronary sinus is a large vein that collects deoxygenated blood from the heart muscle itself. Choice E is incorrect because there is no such thing as a cardiac fissure.

A Large Groove That Runs Around the Heart, and Separates