Page 57 - The Veterinary Laboratory and Field Manual 3rd Edition

26 Susan C. Cork, Roy Halliwell and Willy Schauwers

(a) (b) (c)

Figure 1.18a–d (a) The anatomy of the neck of the ruminant (topographical features). This illustrates the
location of the external jugular vein which is a common site for the collection of blood samples. The paired
jugular veins extend the length of the neck and terminate within the thoracic inlet. The jugular veins return
blood from the head to the heart via the cranial vena cavae. (b, c and d) These photographs demonstrate
blood collection from the jugular vein of a dairy cow using a wide bore needle and vacutainer. Photo: Dr
Regula Waeckerlin, Faculty of Veterinary Medicine, University of Calgary.

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