Читать книгу Manual of Equine Anesthesia and Analgesia - Группа авторов - Страница 74

 Atria are highly innervated by sympathetic and parasympathetic fibers.Controls heart rate (HR) and contractility.Parasympathetic fibers – decrease rate and contractility.Sympathetic fibers – increase HR and contractility.

 Ventricles are primarily innervated by sympathetic fibers.They continually discharge to maintain a strength of ventricular contraction 20–25% greater than what would occur with no sympathetic input.