Which muscles are responsible for separating the fingers and toes?

The muscles that are responsible for separating the fingers and toes are called abductors. Abductor muscles function to move a body part away from the midline or axis of the body, which is exactly what happens when the fingers or toes are spread apart. For instance, the abductor digiti minimi muscle works specifically to abduct the little toe, while the dorsal interossei muscles help in abduction of the fingers.

In contrast, the adductor muscles are responsible for bringing body parts closer together. Flexors are involved in bending joints and decreasing the angle between body parts, whereas extensors serve to extend or straighten out the joints. Therefore, the role of the abductors is distinct and crucial for the action described in the question.