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The horizontal axis of Guyton diagram represents right atrial pressure or central venous pressure, and the vertical axis represents cardiac output or venous return. The red curve sloping upward to the right is the cardiac output curve, and the blue curve sloping downward to the right is the venous return curve. A steady state is formed at the ...
The vertical; or midclavicular lines, are drawn as if dropped from the midpoint of each clavicle. The superior horizontal line is the subcostal line, drawn immediately inferior to the ribs. [1] The inferior horizontal line is called the intertubercular line, and is to cross the iliac tubercles, found at the superior aspect of the pelvis.
The right border of the heart (right margin of heart) is a long border on the surface of the heart, and is formed by the right atrium. The atrial portion is rounded and almost vertical; it is situated behind the third, fourth, and fifth right costal cartilages about 1.25 cm. from the margin of the sternum.
Vectorcardiography (VCG) is a method of recording the magnitude and direction of the electrical forces that are generated by the heart by means of a continuous series of vectors that form curving lines around a central point. [1] Vectorcardiography was developed by E. Frank in the mid 1950s.
The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...
Parasternal line: A vertical line equidistant from the sternal and mid-clavicular lines. Mid-clavicular line: A vertical line passing through the midpoint of the clavicle. Mammillary line; Anterior axillary line: A vertical line on the anterior torso marked by the anterior axillary fold. Midaxillary line: A vertical line passing through the ...
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When viewed via cross section however, the right ventricle seems to be crescent shaped. [3] [4] The right ventricle is made of two components: the sinus and the conus. The Sinus is the inflow which flows away from the tricuspid valve. [5] Three bands made from muscle, separate the right ventricle: the parietal, the septal, and the moderator band.