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Quarterly Journal of Experimental Physiology and Cognate Medical Sciences 41.4 pp 462-474
© The Physiological Society 1956
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THE DISTRIBUTION OF CAROTID AND VERTEBRAL BLOOD IN THE BRAIN AND SPINAL CORD OF THE GOAT

B. Andersson 1 and P. A. Jewell 1

1 The Department of Physiology, Royal Veterinary College (University of London)

1. The distribution of the carotid and vertebral arteries in the brain and spinal cord of the goat have been determined by the infusion of coloured suspensions in the living animal and subsequent histological examination of the tissues.

2. Blood flow in the basilar artery is in a caudal direction so that the brain is virtually entirely supplied by carotid blood; in some individuals vertebral blood may reach the posterior medulla.

3. The carotid rete does not provide admixture of blood from the two carotids under normal conditions of inflow, and this is so whether the animal is anæsthetized and supine, or conscious and standing in normal posture.

Note:

We are indebted to Professor E. C. Amoroso for his encouragement throughout this work and for the facilities which he made available to one of us (B.A.) whilst a visitor in his Department. We thank Messrs. Imperial Chemical (Pharmaceuticals) Ltd. and Messrs. Acheson Colloids Ltd. for the gift of colour suspensions.

Submitted on May 14, 1956




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