Vasoconstriction
Narrowing of the blood vessel
Principle
The principle is the contraction of the smooth muscle in the vessel wall.
Substances with a vasoconstrictive effect
- Endothelin I,
- tromboxane A2,
- angiotensin II,
- norepinephrine (α1-receptors),
- tromboxane,
- serotonin,
- vasopressin-ADH,
- other α1 receptor stimulators.
Use in the body
- Local regulation of tissue blood flow (response to hypoxia in the pulmonary basin - the so-called Euler-Liljestrand mechanism, reaction to cold, etc.)
- stop bleeding,
- regulation Mean arterial pressure.
Source
References
- KITTNAR, Otomar, et al. Lékařská fyziologie. 1. edition. Praha : Grada, 2011. 800 pp. pp. 358. ISBN 978-80-247-3068-4.
