The process in this case is âsubtractive,â since the pigments subtract or absorb some of the wavelengths of light. With transparent dyes, like our Fiber Reactive Dyes that we use for Tie-Dye, Cyan (blue-green), Magenta (red-violet), and Yellow and are called subtractive primaries, or primary colors.he process in this case is âsubtractive,â since the pigments subtract or absorb some of the wavelengths of light. With transparent dyes, like our Fiber Reactive Dyes that we use for Tie-Dye, Cyan (blue-green), Magenta (red-violet), and Yellow and are called subtractive primaries, or primary colors.
Preauricular Pit or Sinus. Preauricular pits or sinuses are present in front of the ear. they are small skin lined tracks that lead from the skin surface to deep within the tissues in front of the ear.Their track course can go into the cartilage or end in the skin tissue.
The outer ear refers to the ear canal that is approximately one inch in length and ends at the level of the eardrum (known as the tympanic membrane). The eardrum identifies the beginning of the middle ear, which is a cavity in the bone of the skull that houses the three bones of hearing (known as ossicles).