Where are inguinal lymph nodes?

Im in nursing and we briefly discussed lymph node in groin but never practiced palpating them in only groin because of personal issues. Everyone feel it was to intrusive to feel nodes in groin on classmates. I believed I developed mono, so I was checking for nodes in neck , which both tonsillar nodes were swollen and one in superior chain. There are none present in under arms and none that I can feel in groin. I thought the groin was the crease between thigh and pubic area. I feel lumps in inner thigh but there are many lumps just like in breasts. Just trying to distinguish if inguinal nodes are in that crease( groin I guess) or if they can actually felt in the thigh next to groin? Thanks in advance!!!