On the shape of transverse wounds of the blood vessels in relation to their physiology / by W.S. Savory.

  • Savory, W. S. (William Scovell)
Date:
[1858?]
Catalogue details

Licence: Public Domain Mark

Credit: On the shape of transverse wounds of the blood vessels in relation to their physiology / by W.S. Savory. Source: Wellcome Collection.

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    measured 1* mch. It was now fully stretched, and measured 1-6-q incli. The following table gives the result of some of these expe¬ riments . „ Relaxed. Natural. Stretched. Inches. Inches. Inches. Common carotid . . • • 1 1 ^ ■ • ^10 1-3- • ^10 1 1 Femoral, in middle of thigh o o . 1 Abdominal aorta . . • • 1* . 2 lo rfli t 1'-^ 1 « Internal mammary . . . • 1* 1 ^ • -^10 1-2- • ■‘■10 ?? • • • • 1-^ ^10 1_A_ • ^10 I_6_ ^10 Common carotid (of an old' 1-3- • -^10 1_6_ • ^ 1 0 woman in whom the vessels L ■^10 contracted less than usual) , Carotid (of a live dog) . . 0-^- '^10 . 1 I _1— • ^10 It is worthy of remark, that it is only in certain parts of the body, where the influence of movement is most extensive, that we can by any amount of relaxation bring the retracted ends into apposition. Thus: if the brachial or femoral artery be divided in the middle of the arm or thigh, by no possible contrivance of position can the retracted ends be brought together again ; indeed, the degree of separation can scarcely be diminished. But if the brachial artery be divided in front of the elbow, or the popliteal artery behind the knee, then forcible flexion will bring the ends into contact. * The same » It is well known that when the elbow is acutely flexed, the pulse at the wrist becomes imperceptible ; and a similar effect upon the circulation below is produced by extreme flexion of the knee. This fact is important, and illus¬ trative of the purpose which the tension of the vessels fulfils. In the course of some ingenious observations on the arteries of the limbs, Mr. Nunn notices the free anastomosis of vessels about the elbow and knee joints, and, alluding to t e subiect of extreme flexion, asks, “ Has not this arrangement some relation to the nature of the movement proper to the joint—to the extreme flexion o w no it is capable, and which it so frcciuently undergoes? —Observations and Notes on the Arteries of the Limbs. By T. W. Nunn. 1858. Popliteal aneurism has been successfully treated by extreme flexion of the
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