NODULUS
\nˈɒdjʊləs], \nˈɒdjʊləs], \n_ˈɒ_d_j_ʊ_l_ə_s]\
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A small knot. A small prominence or lobule in the portion of the cerebellum, which forms the posterior boundary of the fourth ventricle. The nodulus is on the median line, and before the uvula. See Vermiform process, inferior.
By Robley Dunglison
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Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.