Jim said to me, 'lend me your pen , .'

did you lend your pen?? we are all dying to know.

You're asking the other person to give(=lend) you a pen. Hope this helps ;)

The lymphatic system is part of the immune system. It produces and releases lymphocytes (white blood cells) and other immune cells that monitor and then destroy the foreign invaders — such as bacteria, viruses, parasites and fungi — that enter the body.