THE MORPHOGENESIS OF VASCULATURE OF THE SWINE FETAL EXTERNAL EAR | ||
Assiut Veterinary Medical Journal | ||
Article 9, Volume 15.1, Issue 29, September 1985, Pages 65-71 PDF (3.17 M) | ||
Document Type: Research article | ||
DOI: 10.21608/avmj.1985.190234 | ||
Authors | ||
M.A.A. AHMED; R. SCHWARZ; M.R. FATH EL-BAB | ||
Abstract | ||
The morphogenesis of the vascular elements in the fetal external ear of 37 swine fetuses (German landrace), from 90-330 mm crown to-rump length, was described. A simple pattern for the auricular vascular supply in the form of 5-7 arterial branches and two large veins could be recognized in fetuses ranging from 90-100 mm CVR length. In 150-200 mm length fetuses, the blood vessels were differentiated into a definite pattern of construction and were accompanied by satellite veins on both sides. The third stage of development showed a progressed pattern of distribution as the arteries presented further regional differentiation along their course, and the veins were connected transversely with several venous arches. | ||
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