Avian nucleus isthmi and its relation to hippus.
D000818:Animals; D001717:Birds; D002645:Chickens; D004372:Ducks; D004558:Electric Stimulation; D005133:Eye Movements; D007839:Functional Laterality; D007765:Lacrimal Apparatus / Q000502:physiology; D008636:Mesencephalon / Q000033:anatomy & histology / Q000502:physiology*; D009410:Nerve Degeneration; D009454:Neurofibrils; D009541:Nictitating Membrane / Q000502:physiology; D011680:Pupil / Q000502:physiology*; D014422:Turkeys