INTRACRANIAL VASCULAR SPASMS
\ˌɪntɹəkɹˈe͡ɪnɪəl vˈaskjʊlə spˈazəmz], \ˌɪntɹəkɹˈeɪnɪəl vˈaskjʊlə spˈazəmz], \ˌɪ_n_t_ɹ_ə_k_ɹ_ˈeɪ_n_ɪ__ə_l v_ˈa_s_k_j_ʊ_l_ə s_p_ˈa_z_ə_m_z]\
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Narrowing of the lumen of one or more intracranial arteries due to contraction of arterial smooth muscle or to morphologic changes of the blood vessel wall. Large blood vessels near the base of the brain are primarily affected and reduced blood flow may result in hypoxic-ischemic brain injury (HYPOXIA-ISCHEMIA, BRAIN). Vasospasm may be associated with SUBARACHNOID HEMORRHAGE; CRANIOCEREBRAL TRAUMA; and other disorders. (From Neurosurg Clin N Am, 1998 Jul;9 (3):615-27)
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Word of the day
basidiomycota
- comprises fungi bearing the spores on basidium: Gasteromycetes (puffballs); Tiliomycetes (comprising orders Ustilaginales (smuts) and Uredinales (rusts)); Hymenomycetes (mushrooms; toadstools; agarics; bracket fungi); in some classification systems considered a division of kingdom comprises fungi bearing spores on a basidium; includes Gasteromycetes (puffballs) Tiliomycetes comprising the orders Ustilaginales (smuts) and Uredinales (rusts) Hymenomycetes (mushrooms, toadstools, agarics bracket fungi).