Nucleus Eminentiae Teretis, Corpus Pontobulbare, and Their Fiber Connections

Capillary Fat‐embolism in the Brains of Sheep, Pigs and Monkeys, With Especial Reference to Demyelination and Other Lesions in the White Matter

“…Simon and Solomon (1935) and Simon (1942) found in disseminated sclerosis an increased coa^ilability of tbe blood when the patients received injections of adrenalin or typhoid vaccine. Marburg (1942), bowever. regarded phlebotbrombosis as only one of tbe aetiological factors of tbe demyelination in disseminated sclerosis, while Dow and lierglund (1942) considered that the thrombi might result from local absorption of tbromboplastic substances released by tbe breakdown of myelin.…”

A morphometric analysis of the circumolivary fiber bundle of the human brainstem

“…Circumolivary fibers or anterior external arcuate fibers are to be understood as fibers on the ventrolateral surface of a human medulla oblongata. The fibers run downwards from either the anterior median fissure, the pyramid, or both, run around the inferior pole of the olive and turn upwards to reach the restiform body of the inferior cerebellar peduncle (Smith, 1904 ; Hajós, 1914 ; Swank, 1934 ; Juba, 1935 ; Marburg, 1945 ; De Caro et al, 1998 ). These fibers can form a macroscopically visible bundle on the brainstem.…”

“…Fibers located more superficially are described as anterior external arcuate fibers (AEAF; Marburg, 1945 ; Rasmussen and Peyton, 1946 ; Stonebridge et al, 2020 ). The most ventral paired nuclei of the medulla oblongata, the arcuate nuclei (AN) send axonal outgrowths along the same general path of the CFB.…”

“…Together with other functional centers of the medulla oblongata the AN might be integrated in breathing control and cardiorespiratory mechanisms (Zec et al, 1997 ; Matturri et al, 2004 ; Fu and Watson, 2012 ; Baizer, 2014 ; Paradiso et al, 2018 ; Stonebridge et al, 2020 ). Finally, anterior fibers reaching the reticular formation of the medulla oblongata have been described and added to the circumolivary fiber bundle as well (Swank, 1934 ; Marburg, 1945 ; Stonebridge et al, 2020 ). Fibers need to be noted, which originate from cell groups of the paramedian tracts.…”

“…This fact is explained by the partial covering of the olive surface by the PFB. After running over the olive surface, the PFB joins the pathway of the AEAF (Barnes, 1901 ; Smith, 1904 ; Hajós, 1914 ; Marburg, 1945 ; Stonebridge et al, 2020 ).…”