Factors affecting the coagulation time of blood. IV, The hastening of coagulation in pain and emotional excitement / by W.B. Cannon and W.L. Mendenhall.

  • Walter Bradford Cannon
Date:
[1914?]
Catalogue details

Licence: Public Domain Mark

Credit: Factors affecting the coagulation time of blood. IV, The hastening of coagulation in pain and emotional excitement / by W.B. Cannon and W.L. Mendenhall. Source: Wellcome Collection.

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    2.21 — 4.5 minutes .26 — 4.5 ca Anaesthesia lessened 32 — 3.5 # a light 32 -— Abdomen opened .47 — 1.5 minutes 02 — 1 ‘ 2 Ligature passed around hepatic nerves .57 — 1.5 minutes Anaesthesia light; corneal reflex present 3.02 — 3 S 07 — 3 ‘* Some hepatic nerves cut 12 — 4.5 Rest of hepatic nerves cut 22—95 The results of this experiment are shown graphically in Figure 2. Nov. 13. A cat was etherized at 1.55, tracheotomized, and the femoral artery laid bare. As soon as these preparations were completed, the ether was removed and anaesthesia became light. The blood clotted thus: 2.08—6 minutes, 15—4 os Anaesthesia light 20—2 # 24—1 7 Etherization begun again ic.) rh 0-7) s Se SE) Y 00 — 5.5 rE In the foregoing and in other similar instances, a condition of surgical injury, whether just made or being made, was accompanied by more rapid clotting of blood when the degree of anaesthesia was lessened. This condition was one which, if allowed to go further in the same direction, would result in pain. Both direct electrical stimulation and also surgical operation of a nature to
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