Supraventricular crest lies between -
Ans. is 'a' i.e., Pulmonary orifice and atrioventricular orifice(Ref: BDC 8/e Vol, I p. 253-258).Supraventricular crest (crista supraventriculars) or infundibulo-ventricular crest separates tricuspid (AV) orifice and pulmonary orifice, i.e. inlet and outlet pas.
Pulmonary orifice and atrioventricular orifice
Atrioventricular orifice and fossa ovalis
SVC and right atrium
Right an dleft coronary aery