PHARYNGEAL ARTERIES
\fˈɑːɹɪnd͡ʒˌi͡əl ˈɑːtəɹiz], \fˈɑːɹɪndʒˌiəl ˈɑːtəɹiz], \f_ˈɑː_ɹ_ɪ_n_dʒ_ˌiə_l ˈɑː_t_ə_ɹ_i_z]\
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These are two in number. The one-superior or pterygo-palatine, Ramus Pharyngaeus superior of Haller arises from the internal maxillary at the base of the zygomatic fossa, passes through the pterygopalatine canal, and proceeds to be distributed to the pharynx and the corresponding part of the Eustachian tube. The other- the inferior- Pharyngae'a ascendens of Haller- arises from the external carotid, on a level with the facial. It ascends along the lateral and posterior part of the pharynx, and divides into two branches; the one-the pharyngeal, properly so called- is distributed to the pharynx; the other-the meningeal- gives its branches particularly to the dura mater.
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.-.