glVertex3f(muscles[i].parent1->position.x,muscles[i].parent1->position.y,muscles[i].parent1->position.z);
glVertex3f(muscles[i].parent2->position.x,muscles[i].parent2->position.y,muscles[i].parent2->position.z);
}
glVertex3f(muscles[i].parent1->position.x,muscles[i].parent1->position.y,muscles[i].parent1->position.z);
glVertex3f(muscles[i].parent2->position.x,muscles[i].parent2->position.y,muscles[i].parent2->position.z);
}