Question

http://prntscr.com/mi3ver Help anatomy

Answer 1

@Vocaloid

Answer 2

I think the answer is b

Answer 3

@Razor

Answer 4

Not good with health im sorry

Answer 5

thanks for trying

Answer 6

@SmokeyBrown @dude

Answer 7

So the way a heartbeat works is that the atria pump blood toward the ventricles first, then the ventricles push the blood to the lungs and other parts of the body.
So, the first part of the heartbeat is caused by the contractions of the atria.

Answer 8

so it is b? @SmokeyBrown

Answer 9

Nah, it'd be A. The arrow is pointing to the first "pulse" of the heartbeat. That's caused by the atria, not the ventricles. The second "pulse", where the line dips, would be caused by the ventricles.

Answer 10

Hai thank you so much

Answer 11

np