THORAX ABDOMEN AND PELVIS

MEDICAL

HEART AND PERICARDIUM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following structures is a deep groove that is usually filled with a substantial amount of fat and marks the border between the atria and the ventricles?
A
Coronary sinus
B
Anterior interventricular sulcus
C
Posterior interventricular sulcus
D
Interventricular septum
E
Coronary sulcus
Explanation: 

Detailed explanation-1: -The coronary sulcus (also called coronary groove, auriculoventricular groove, atrioventricular groove, AV groove) is a groove on the surface of the heart at the base of right auricle that separates the atria from the ventricles.

Detailed explanation-2: -The walls of the ventricle are lined with trabeculae carneae, ridges of cardiac muscle covered by endocardium.

Detailed explanation-3: -Shallow grooves called the interventricular sulci, containing blood vessels, mark the separation between ventricles on the front and back surfaces of the heart.

There is 1 question to complete.