The conduit phase witnesses the atrium serving as a simple conduit transiting blood towards the ventricle. This role is reciprocal of the two... View Article
As per the mechanical events in the cardiac cycle, these phases are separated. These phases of the cardiac cycle are as follows - Diastolic... View Article
Action potential is a result of being found in the membrane of cells having special types of voltage-gated ion channels. These channels are a... View Article
The sinoatrial node (SA node) is called the natural pacemaker of the heart. The impulse initiates in a small bundle of special cells found in the... View Article
The heartbeat is grouped into two phases: the diastole and systole phases. Ventricles at first contract, pushing blood out into the aorta or... View Article
Filling pattern exhibited on the transmittal waveform is found by the passive and relaxation properties of the LV in the process of diastole. Two... View Article
Pressure gradient between the atrium and ventricle takes place when the ventricle fills. The gradients indicate the mean left atrial pressure and... View Article
Compliance and stiffness are inversely related. Compliance is measuring the change in the volume compared to the change in pressure. There can... View Article
The ventricles continue contraction in the outflow phase propelling blood into the pulmonary trunk and aorta, which is known as systole. Towards... View Article
When the pressure of ventricles surpasses the pressure in the pulmonary/aorta trunk, it causes the opening of the outflow valves. As a result,... View Article
Blood fills in the ventricles in two stages - the atrial systole and diastole. Both ventricles and atria relax in the diastole. Before directly... View Article
The diastole takes place in order for the left ventricle to fill with adequate blood at a pressure low enough. This prevents the occurrence of... View Article
A Wiggers diagram is a regular illustration adapted in teaching the physiology of cardiac studies. The X-axis in the Wiggers diagram is used to... View Article
During the period of isovolumetric contraction, the ventricles contract, however, the aortic and pulmonary valves are closed as the ventricles... View Article
The atrioventricular valves close when the ventricle starts to contract and the pressure exceeds the corresponding atrium. Simultaneously, the... View Article
Myocardiocytes are specialized cells. They are found in the heart and are capable of generating and transmitting independently, the electrical... View Article
A cell wall is a structural layer. It wraps a few types of cells, just to the exterior of the cell membrane. The cell wall performs major... View Article
The lymphatic system can be broadly classified into - Primary lymphoid organs generate special immune system cells known as lymphocytes. It... View Article
The networks of hollow tubes carrying blood to and from all body parts are blood vessels. The five main types of blood vessels are - Arteries... View Article
