Could it be a bad thing if one of your lymph nodes (swollen glands by your jaw) breaks off?

Continuous chains: Lymphatic system absorbs and carries things too big to go into the arteries and veins like bacteria eaten by white cells and digested food. Lymph nodes "taste" the lymph to see if anything bad is there like bacteria/viruses/cancers, etc. They enlarge in response to the inflammation they create when they react. They are all connected so they cannot just break off, it may have shrunk or pushed deep.