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Science 22 April 1966:
Vol. 152. no. 3721, pp. 540 - 543
DOI: 10.1126/science.152.3721.540
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Articles

Arterial Constrictor Response in a Diving Mammal

Klaus M. Bron 1, H. V. Murdaugh Jr. 1, J. Eugene Millen 1, Ronald Lenthall 1, Philip Raskin 1, and Eugene D. Robin 1

1 Departments of Radiology and Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, and Mount Desert Island Biological Laboratory, Salisbury Cove, Maine

Angiograms were obtained in the harbor seal, Phoca vitulina, in air and during diving. During diving there is arterial constriction of the vascular beds of muscle, skin, kidney, liver, spleen, and presumably of all vascular beds except those perfusing the brain and heart. There is sudden constriction and narrowing of muscular arteries close to their origin from the aorta. Constriction of small arterial branches is so intense that blood flow is essentially lost in all involved organs.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Dissociation of Bradycardia and Arterial Constriction during Diving in the Seal Phoca vitulina.
H. V. Murdaugh Jr., C. E. Cross, J. E. Millen, J. B. L. Gee, and E. D. Robin (1968)
Science 162, 364-365
   Abstract »    PDF »
Alpha-Glycerophosphate Dehydrogenase and Glucose-6-Phosphate Dehydrogenase in Tissues of the Weddell Seal.
G. H. Fried, C. Ray, J. Hiller, S. Rabinow, and W. Antopol (1967)
Science 155, 1560-1561
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)