Premium
The aortic arches and their derivatives in the embryo porcupine (Erethizon dorsatus)
Author(s) -
Struthers Parke H.
Publication year - 1930
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.1050500204
Subject(s) - biology , anatomy , aorta , aortic arch , trunk , embryo , artery , arch , medicine , microbiology and biotechnology , ecology , civil engineering , engineering
This ontogenetic study shows the following facts: (1) the presence of a vidian artery homologous with that of reptiles, which serves visceral elements of the jaw; (2) there exists a transitory occipital artery arising from the stapedial which contributes to the vascular supply of the occipital region; (3) the presence of a transitory fifth arch intimately associated with the sixth arch; (4) there is evidence of at least two presegmental branches of the aorta; (5) in the development of the adult pulmonary stem the right artery forms very little of the common vessel; (6) a single cephalobrachial trunk forms the culmination of arch development; (7) arterial development of the head and neck falls into three phases: ( a ) a temporary arterial pattern designed to carry nutriment to primitive head structures, ( b ) a plan of arterial distribution adapted to supply the rapidly forming cartilage and muscle of the jaws, and, ( c ) a readjustment period when the arterial plan is readjusted due to the increased heteronomy of the head.