AUTOREGULATION-BLOOD VESSEL INNERVATION
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SUMMARY
1. Blood vessels are innervated by the sympathetic (SNS) but not parasympathetic system (PNS).
2. All blood vessels except capillaries & venules contain smooth muscles innervated by SNS.
3. Exceptions with dual innervation: arteries of erectile tissue, uterine, facial, salivary glands.
4. Innervation of most veins is sparse except the splanchnic vessels.
Reference(s)
Barrett, K.E., Barman, S.M., Brooks, H.L., X, J. and Ganong, W.F. (2019). Ganong’s review of medical physiology. 26th ed. New York: Mcgraw-Hill Education
