THE VASOMOTOR REFLEX ARC
نویسندگان
چکیده
منابع مشابه
Marshall Hall, the reflex arc and epilepsy.
Marshall Hall (1790-1857), who graduated from the University of Edinburgh's Medical School in 1812, was considered one of the greatest physiologists of his day. He advanced knowledge in various areas of medicine, in particular elucidating the mechanism of reflex activity in 1833. Hall suggested that convulsive epileptic seizures arose from heightened activity in the afferent limb or the central...
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It has been suggested recently that migraine, rather than being a vasomotor abnormality confined to the cranial arteries, may be a generalized disturbance of arteries throughout the body (Appenzeller, Davison, and Marshall, 1963; British Medical Journal, 1964). The principal evidence for this hypothesis is the study by Appenzeller et al. (1963) of vasomotor reflexes in the hands of migrainous s...
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Many symptoms and signs of migraine can be explained by changes in the calibre of cerebral vessels (Wolff, 1948). Abnormalities in the size and a reduction in the amplitude of pulsation of extracranial vessels during intervals free of headache have been described (Wennerholm, 1961; Tunis and Wolff, 1953). Anatomical variations from the normal adult pattern of the capillaries of the finger nail ...
متن کاملReflex arc of the first component of the human blink reflex: a single motoneurone study.
Latency variation of consecutive responses of single orbicularis oculi motoneurones in the first component of the electrically elicited blink reflex was 2.6 times larger than that of the H reflex of the soleus muscle fibres. Some motoneurones showed bimodal latency distribution or double responses or both at an interval of about 4-5 ms. Typical first component responses were sometimes obtained ...
متن کاملInvolvement of histaminergic inputs in the jaw-closing reflex arc.
Histamine receptors are densely expressed in the mesencephalic trigeminal nucleus (MesV) and trigeminal motor nucleus. However, little is known about the functional roles of neuronal histamine in controlling oral-motor activity. Thus, using the whole-cell recording technique in brainstem slice preparations from Wistar rats aged between postnatal days 7 and 13, we investigated the effects of his...
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ژورنال
عنوان ژورنال: Annals of Surgery
سال: 1927
ISSN: 0003-4932
DOI: 10.1097/00000658-192701000-00016