286 THE CIRCULATION OF THE BLOOD 



In sonic eases an abnormal tendency to vasoconstriction is a conspicuous 

 feature. 



Tabes Dorsalis. — The flow is distinctly diminished, especially in the 

 feet, although also in the hands, and the vasomotor reflexes are feeble. 

 Sometimes there is inequality in the flow of the two hands, which how- 

 over need not necessarily indicate a unilateral lesion of the cord in the 

 cervical region. 



