Question

Q.155. Choose the incorrect match.
1) SAN - Right upper corner of right atrium
2) AVN - Lower right corner of left atrium
3) Chordae tendinae - Present in ventricles only
4) AV bundle - Atrioventricular spetum​

Answer 1

$\bold{Answer\;:-}$

1. SAN - It is situated in the wall of the right atrium near the opening of superior vena cava it also acts as the "pacemaker" of the heart.

2. AVN - Left lower corner of right atrium.

3. Chordae Tendinae (ChT) - Present in ventricles only.

4. AV bundle - Atrioventricular spetum ; The only connecting tissue present between the atria and ventricles is the atrioventricular bundle or the bundle of His. This bundle then divides into the left and the right bundle branches, one going to each ventricle.

$\bold{Hope\;it \; helps\;!}$