I ink what the other person said
because the doctor might not have studied her enough to diagnosed her
The middle turqois-ish color is Nucleus
The one on the bottom right is cell membrane
The one on the bottom left is cell wall
They have two pairs of main nerve cords organized around a number of paired ganglia. while they don't have a "true brain"-- they have somewhat of a nervous system, composed of the two, or three pairs of nerve cords contained in the visceral mass.