Navegando por Palavras-chave "medulla"

Agora exibindo 1 - 2 de 2
  • Nenhuma Miniatura disponível
    Item
    Somente Metadadados
    Differential control of cardiac functions by the brain
    (Blackwell Publishing, 2006-12-01) Salo, Lauren M.; Campos, Ruy R.; McAllen, Robin M.; Univ Melbourne; Universidade Federal de São Paulo (UNIFESP)
    1. the idea is introduced that cardiac rate, contractility or atrioventricular (A-V) conduction spread may be controlled independently by the brain. Limited data from reflex studies are cited to support this view.2. Evidence is presented that individual autonomic post- and preganglionic neurons have quite specific actions on the heart. Premotor and other central neurons can have preferential actions on heart rate, contractility or A-V conduction.3. the functional implications of selective cardiac control are discussed.
  • Imagem de Miniatura
    Item
    Acesso aberto (Open Access)
    Median nerve SEP after a high medullary lesion: preserved N18 and absent P14 components (case report)
    (Academia Brasileira de Neurologia - ABNEURO, 1999-06-01) Manzano, Gilberto Mastrocola [UNIFESP]; Schultz, Rodrigo Rizek [UNIFESP]; Barsottini, Orlando Graziani Povoas [UNIFESP]; Zukerman, Eliova [UNIFESP]; Nóbrega, João Antonio Maciel [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Median nerve SEPs recorded from a patient with a high medullary lesion are described. The lesion involved the anteromedial and anterolateral right upper third of the medulla, as documented by MRI. Forty one days after the lesion, left median nerve SEP showed preserved N18 and absent P14 and N20 components; stimulation of the right median nerve evoked normal responses. These findings agree with the proposition that low medullary levels are involved in the generation of the N18 component of the median nerve SEP.