Variability of Rat’s coronary arteries.
A, B & C). The most common types of LAD artery are with 2-3 diagonal branches and septal perforating branch.
D) Two left anterior descending arteries (Duplication of LAD)
E) & F) Left anterior descending artery has early bifurcation and does not reach heart’s apex. If a ramus intermediate artery is present, the diagonal vessels are less prominent and arise more distally