Question

What will you do if someone pricks your hand with a needle? Elucidate the pathway of response with a neat labelled diagram.​

Answer 1

sAnswer: the nerve will send a message to spinal cord  

Answer 2

if someone pricks your hand with a needle -

• There are multiple processes which will occur once a needle pricks you.

• If it is done by someone else, reflex action will be set in motion through spinal cord and your hand will move away with a jolt. There may or may not be any bleeding.
• If you do it to your own hand, then the hand will start bleeding.
• Then, the clotting process is inititated with the help of platelets called hemostasis.
• Clotting factors like prothrombin, fibrin are involved which help in clotting process.
• The actual clot which is formed is a combination of fibrin threads, blood cells and plasma.