The development of the heart in shad (Alosa sapadissima, Wilson) : with a note on the classification of teleostean embryos from a morphological standpoint / by H.D. Senior.

  • Senior, H.D.
Date:
1909
Catalogue details

Licence: In copyright

Credit: The development of the heart in shad (Alosa sapadissima, Wilson) : with a note on the classification of teleostean embryos from a morphological standpoint / by H.D. Senior. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    position of Fig. 21 position of Fig. 20 position of Fig. 19 position of Fig. 18 ■ 'm Otocyst^ Spinal cord Ectoderm Notochord Dorsal aorta Peritoneal coelom L. cardinal v. CEsophagus R. cardinal v. Supravitelline sinus L. jugular v. Br. cleft 2 Branchial cleft Branchial a. 4 Branchial a. 3 Ventral aorta Dorsal parietal pericardium Conus arteriosus Atrium “Yolk-process” of sinus venosus Yolk [in mid- sagittal sec.] Anterior wall of sinus venosus Ventral parietal pericardium' (mostly removed) Body-wall [cut] Fig. 1.—The left side of a reconstruction from the posterior gill region of a recently hatched sliad, stage of 114 hours X 1^)0 diains. Sufficient body-wall has been removed to open the pericardial coelom ventrally and laterally and to show the terminations of the left jugular and cardinal veins. The anterior pole of the yolk and the adjacent parts of the heart and pericardium are shown in mid-sagittal section.