A: In frog, sinus-venosus is present.
R: In mammals and birds are remnant of sinus venosus has taken part in the formation of SA node.

Assertion: In frog, sinus venosus is present. Reason: In mammals and birds, the remnant of sinus venosus has taken part in the formation of SA node.

What is sinus venosus?

What is correct about sinus venosus

Heart lacks sinus venosus in

Sinus venosus occurs on

Sinus venosus occurs on

Sinus venosus occurs on

The sinus venosus is located on