lymphoid progenitor cells are the cells that create new white blood cells. you will find them in the bone marrow, lymph nodes and thymus

Lymphoid progenitor cells are only found in primary lymphoid organs, i.e. bone marrow, bursa Fabricius, and thymus, provided as repertoire. The ones found in lymph nodes and other secondary lymphoid organs are cells that already undergoing education, selection, maturation, and differentiation to be capable to recognize antigens.

come out as a naive cells..I like "naive" words..

bursa Fabricius.. What’s that?

It is a dorsal diverticulum of bird’s cloaca, the origin of B-cells in addition to that ones produced in bone marrow in where B-cells undergo proliferation, education, and differentiation.

Hehe my picture 😆

Null cell or killer cell (K cell) is a class of lymphocytes characterized by a lack of surface markers specific for either T or B lymphocytes. There is another type of lymphocytes called natural killer cell (NK cell), this type also lacks of that surface marker (CD3). K cell and NK cell has a difference on how they kill their target cells, K cell kills with a mechanism called ADCC (antibody-dependent cytotoxicity), whereas NK cells is antibody-independent.

Naah, naive cells are the ones that have maturated in primary lymphoid organs but have not yet encountered antigen. The other word for this is "virgin" 😉

I can guess that the picture above is your handmade picture..:lol:

No, that looks like a Vesalius 🙂 🙂 🙂

Actually I got it from Google aww 😛

I think..even when children look at that picture, they’ll say "nah, it’s too childish"..:lol:

Grr should I change it for another one that would be something doctorish? 😈 😆

Ok, what about this one? 😕 😉 Well, anyone reads Japanese? Ha! 8) We can read without read if you know what I mean 🙂

Victor: no protest anymore ok? 👿 😆

Handmade or whatever, but it explains. 😉

Yes information in the figure is more important than the figure itself 😆

Bah…ich kann japanisch nicht lesen…but that’s okay, since I’ve already known the picture..:lol:

Just a suggestion for you, Vic. Because you learn Deutsch now, it would be much better if you notice the caps. Deutscher like everything in its place. That’s why they become a great nation. Deutschland ueber alles 🙂

jaja, ich weiss…still have to memorize it..aww..