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PDF File - Asclepius Herbal Consultancy

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Appendix IV<br />

Epinephrine<br />

β 2 Receptors<br />

Skeletal muscles<br />

Arteriolar<br />

vasodilation<br />

Norepinephrine<br />

α 2 Receptors<br />

Renal, splachnic<br />

and cutaneous<br />

beds<br />

arteriolar<br />

vasoconstriction<br />

Heart<br />

α 1 Receptors ↑ Contractile force<br />

β 1 Receptors ↑ Contractile force<br />

Fig. 2: Cardiovascular Control Mechanisms Mediated by Autonomic Activity<br />

To the Heart of the Matter<br />

↑ Conduction volocity<br />

Cardiac Effect<br />

↑ cardiac output<br />

References: Guyton (1986), Berne et al. (1998) & Paulson et al. (1996)<br />

56

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