Brainstem ( Jacobsohn, 1909 ) : A combination of the medulla (Winslow, 1733), pons (Haller, 1747), and midbrain (Baer, 1837) as originally defined for adult humans; p. 1. Used in this sense more recently by for example Olszewski & Baxter (1954, p. 7), Williams (1995, p. 910), Nieuwenhuys et al. (2008, p. 3).