Why, when you poke yourself or cut yourself, does it often take 10-20 seconds for you to start bleeding?

Question

Why, when you poke yourself or cut yourself, does it often take 10-20 seconds for you to start bleeding?

In: 8

Answer 1

The smallest blood vessels (capillaries) that extend into every corner of tissue are tiny, and have very little flow rate and pressure with which to push spilling blood up and out of the wound when you nick them.