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Saturday, October 24, 2009

Why is someone more likely to bleed to death when an artery is cleanly severed rather than crushed or torn?


Answer:
A cleanly severed vessel is less likely to clot, therefore less likely to stop the blood flow. A crushed or mangled vessel has more places for the clot to form, so it could potentially stop the bleeding. Think of it like a garden hose - a nice clean cut gets a lot of water thrugh it. A mangled end still lets water out, but it impedes the flow. The slower the flow, the better chance of clotting (plus a slower flow means less blood loss).
A cleanly severed vessel is less likely to clot, therefore less likely to stop the blood flow. A crushed or mangled vessel has more places for the clot to form, so it could potentially stop the bleeding. Think of it like a garden hose - a nice clean cut gets a lot of water thrugh it. A mangled end still lets water out, but it impedes the flow. The slower the flow, the better chance of clotting (plus a slower flow means less blood loss).
when you sever the whole artery youve lost all your blood. depending on what artery it is you would only have 7 minutes to live. crushed or torn the blood flow is alot slower.
Because a cleaning severed artery is totally depressurized unlike one that is crushed or torn. Experiment: you have a straw with fluid in it. block one end with your finger or tape it up. Cut it evenly with scissors and the liquid flows out quickly. Now take another straw (like the first one) with liquid in it and crush it or lightly tear it, the liquid flows out slower! Good Luck with answers!
a severed artery has more rough edges which promote the platelets in the blood to stick together and produce clots to stop the bleeding than a clean cut artery.

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