Назад Heart valves-
Heart valves
(hematoxylin and eosin)

Heart valves:

  • develop like an endocardial duplication, their surface is covered with vascular endothelium;
  • the base of the valves is formed by dense connective tissue containing collagen and elastic fibers and having no blood vessels;
  • the bases of the valves are attached to fibrous rings.

On a section cutted through the base of the rabbit's heart presented structural components of the ventricular-vascular (aortic) and atrioventricular (mitral) valves.

Aortic valve separates the lumen of aorta from the cavity of the left atrium (two of the three flaps got into the section):

A bicuspid (mitral) valve separates the lumen of the left atrium from the left ventricle: