. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 372 actual end. He says: "In the specimen from which my reconstruction was made, the notochord follows much the same course as it did in the Sus individuals which Koelliker studied. But whereas in his the notochord was continuous, in mine its course is broken near the middle of its passage through the basal plate, and each part leaves this and gains a connection with the dorsal wall of the ; Mrs. Gage^) has found that in a certain percentage of pig embryos, the notochord reaches the retropharyngeal region an
. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 372 actual end. He says: "In the specimen from which my reconstruction was made, the notochord follows much the same course as it did in the Sus individuals which Koelliker studied. But whereas in his the notochord was continuous, in mine its course is broken near the middle of its passage through the basal plate, and each part leaves this and gains a connection with the dorsal wall of the ; Mrs. Gage^) has found that in a certain percentage of pig embryos, the notochord reaches the retropharyngeal region and at that point is in contact with the roof of the pharynx. Koelliker2) too has studied the course of the notochord in pig embryos and found it continuous though following a curve very like that shown b}' Mead. Meyer^) believes the pharyngeal bursa to be identical with Seessel's pocket. He summarises his results as follows:. Fig. 1. (a) Diagram of end of notochord pharyngeal recess and hypophysis. (b) (c) Diagram of end of main body of notochord. „Aus meinen Befunden aus jüngeren menschlichen Embryonen geht hervor, daß die Bursa pharj-ngea unabhängig von der Eathke- schen Tasche im 2 Monat bei ca. 14—28 mm Scheitelsteißlänge un- gefähr unter 5 Fällen einmal zur Ausbildung kommt und stets mit der Chorda im Zusammenhange ; ,,Der umstand, daß die Bursa pharyngea der Erwachsenen eben- falls an der Schädelbasis fest adhärent gefunden wird, weil sie die Eibrocartilago basilaris durchbohrt, erlaubt den Schluß, daß die Bursa pharyngea media der Erwachsenen mit der bei Embryonen beschriebenen, also der SEESSEL'schen Tasche identisch ; Huber^) has reached the conclusion that the pharyngeal bursa 1) Gage, "Science"'. New Series, Vol. 24. 2) Koelliker, Entwickelungsgeschichte des Menschen und der höheren Tiere. Leipzig 1879. 3) Meyer, Anat. Anz., Bd. 37, 1910. 4) Huber, Anat. Record, Vol. 6, Xo. 10, Please note that these images are ext
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