A human heart consists of A) One atrium, one ventricle B) Two atria, two ventricles C) One atrium, two ventricles D) Two atria, one ventricle Define the following body part: "ventricle". True or False: The human heart has five chambers. ...
In mammals it is divided by a musculomembranous septum into two halves-right or venous and left or arterial-each of which consists of a receiving chamber (atrium) and an ejecting chamber (ventricle). Synonym(s): cor [TA], coeur [A.S. heorte] Farlex Partner Medical Dictionary © ...
The human heart consists of four chambers: The left side and the right side each have one atrium and one ventricle. Each of the upper chambers, the right atrium (plural = atria) and the left atrium, acts as a receiving chamber and contracts to push blood into the lower chambers, the ri...
The conduction system of the heart consists of the sinoatrial node, the atrioventricular node, and the bundle of His. The morphology of the specialized conducting cells shows great variation, not only among different species but also in different components of the conductive system in a given sp...
(A) Arteries (B) Veins (C) Both A & B (D) None The Heart The heart consists of many layers including a muscular layer that allows the heart to contract. These contractions enable blood to move throughout the circulatory system. Answer and Explanation: Become...
How does the heart's normal electrical activity work? The heart consists of four chambers; two upper chambers called atria and two lower chambers called ventricles. The atria receive blood from blood vessels and, with coordinated electrical impulses from the sinoatrial (SA) node, contract to push...
it usually consists of two atria and a ventricle. Some gastropods have one atrium, and nautiloids, which are cephalopods, have four atria. A dorsal heart, homologous to the dorsal blood vessel in annelids, is characteristic of arthropods. It consists of a series of heart chambers that are ...
Medical Treatment of Heart Failure in Adults with Congenital Heart Disease The hemodynamic model has been traditionally used to describe the heart failure that arises in adults with congenital heart disease. This model states that the heart consists of two positive displacement pumps in series and tha...
It happens with the heart cycle, which consists of the periodical contraction and relaxation of the atrial and ventricular myocardium (heart muscle tissue). Systole is the period of contraction of the ventricular walls, while the period of ventricular relaxation is known as diastole. Note that ...
The electrical system consists of (1) a group of cells forming the sino-atrial node or ‘pacemaker’ which discharges spontaneously at regular intervals, and (2) elongated cells called conduction fibres that transmit the resulting electrical impulse quickly to the ventricular work cells. ...