When you get a shot in the arm, how can you be sure the contents are being released into a blood vessel?

Question

When you donate blood the needle goes into a large, visible vein in your arm or hand but when getting a shot the needle just goes somewhere in your arm.

In: Biology

Answer 1

OH YOU’RE TALKING ABOUT **INJECTIONS.**

~~Well when you get shot in the arm, the bullet can fragment into little tiny pieces but since your blood vessels will be damaged, it’s highly unlikely the fragments can travel through them.~~