Title

A Unique Vascular Configuration among the Efferent Branchial Arteries and Splanchnic Arteries in the Yellow Stingray, Urobatis jamaicensis

Document Type

Article

Publication Date

2009

Keywords

Elasmobranch, Vascular, Anatomy, Corrosion cast, Epibranchial, Dorsal aorta, Splanchnic circulation, Gastric arteries

Publication Title

Microscopy and Microanalysis

ISSN

1431-9276

Volume

15

Issue/No.

3

First Page

194

Last Page

196

Peer Reviewed

1

Abstract

With light and scanning electron microscopy of vascular corrosion casts, we have observed in Urobatis jamaicensis that the fourth epibranchial arteries do not merge completely with the dorsal aorta. Instead they form a brief anastomosis with a short vessel projecting ventrally from the dorsal aorta and maintain their integrity as separately distinct vessels. Posterior to the anastomosis, the right epibranchial becomes the celiac trunk and left epibranchial becomes the anterior mesenteric artery/posterior intestinal artery. This vascular configuration appears to be unique in elasmobranchs.

Comments

©Microscopy Society of America 2009

DOI

10.1017/S1431927609090369

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