Definition is a rhetorical mode that can be used in something smaller or shorter than a full paper. You can use extended definition for several paragraphs only in a paper of much greater length. You also can add to a paper a one-paragraph definition--like a brief encyclopedia definition.
Depending upon location, neural crest cells give rise to most of the peripheral nervous system, as well as various non-neural tissues, like craniofacial bone and cartilage, the thymus and parathyroid glands, and the cardiac outflow tract â in short, all of the tissues that are affected in DiGeorge syndrome.
Main article: Membranoproliferative glomerulonephritis. Membranoproliferative GN (MPGN), also known as mesangiocapillary glomerulonephritis, is characterised by an increase in the number of cells in the glomerulus, and alterations in the glomerular basement membrane. These forms present with the nephritic syndrome, hypocomplementemia, and have a poor prognosis.