Cardiac skeleton (sometimes called "fibrous skeleton of the heart") refers to the structure of connective tissue in the heart that separates the atria from the ventricles. Connective tissue is any type of biological tissue with an extensive extracellular matrix and often serves to support, bind together, and protect organs. ... The heart and lungs (from an older edition of Grays Anatomy) The heart (Latin cor) is a hollow, muscular organ that pumps blood through the blood vessels by repeated, rhythmic contractions. ... Atria may refer to: Atria is an alternative spelling for the Etruscan city that is now Adria in the Veneto region of Northern Italy. ... In anatomy, a ventricle is a part of the body filled with fluid. ...
It is not a "true" skeleton, but it does provide structure and support for the heart, as well as isolating the electric charges that go through the heart. In biology, the skeleton or skeletal system is the biological system providing support in living organisms. ...
The aortic valve is situated in the middle of the cardiac shadow, as seen from the front, and the mitral valve is slightly inferior and to the left (cf.
The intrinsic, rhythmic contractions of cardiac muscle fibers are regulated by pacemakers, and the intrinsic rhythmicity of the pacemakers is regulated in turn by nerve impulses from vasomotor centers in the brain stem.
Cardiac pain is usually referred to the left shoulder and medial side of the left upper limb (ulnar distribution), although it may be felt in the chest.
Feeds |
Contact