Rotate Sprite in Particle System

Hey.
i want to create a splash effect, when a player is hit. i want to emit blood drops from the center of the player. My current problem is, that the sprites have all the same rotation.



Do you know how to change the rotation so that the round part of the blood drop face at the direction, the particle is moving at?
Greetings

 

"Orient: Along Velocity" did work for me. I however had to rotate the sprite image so its "up" was in the correct way.