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Comparison between CV4 and EV4 - Osteopathic Research

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19<br />

fig. 6<br />

sympathetic / parasympathetic<br />

2.4.2 Cardio-vasculary <strong>and</strong> respiratory regulation<br />

As discussed above, the hypothalamus is the most important regulation<br />

centre. There are regions with parasympathetic <strong>and</strong> sympathetic functions.<br />

When the rostral part of the hypothalamus is stimulated, especially the<br />

praeoptic area, the result is an increased parasympathetic activity involving<br />

sweating, vasodilatation, increased salivation, decrease in blood pressure <strong>and</strong><br />

pulse as well as bladder contractions <strong>and</strong> rising gastrointestinal activity. 18<br />

The centres for respiratory <strong>and</strong> cardiovasculary regulation with autonomous<br />

centres for blood pressure, heart activity, vasodilatation, inspiration <strong>and</strong><br />

expiration, etc. are located on the floor of the fourth ventricle, in the medulla<br />

oblongata. This allows a common regulation of the cardiac <strong>and</strong> respiratory<br />

functions. Various pieces of information from the cortex, other autonomic<br />

centres <strong>and</strong> the periphery are processed in this area.<br />

18 DUUS Peter: Neurologisch-topische Diagnostik; Anatomie, Physiologie, Klinik,<br />

Stuttgart, New York: Thieme Verlag, 2001, p.278<br />

Margit Grill / 2006

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