Читать книгу Manual of Equine Anesthesia and Analgesia - Группа авторов - Страница 77

 Large SA node.A “wandering pacemaker” is common.Seen as variably shaped P waves on electrocardiogram (ECG).

 Large atria that may depolarize slightly asynchronously.Result in biphasic P or bifid waves on the ECG.

 Deeply penetrating His‐Purkinje system.Facilitates movement of electrical impulses throughout the large ventricular muscle. Often called Type II Purkinje system.

 Ossa cordi.In all species there is a connective tissue “skeleton” that separates the atria from the ventricles.In cattle and in older horses, these structures may ossify and create two bones, the “ossa cordi.”