between the second and third ribs
The second intercostal space is located approximately 2 inches below the clavicle. This space is between the second and third ribs, along the side of the chest.
The second rib is located at the sternal angle, which marks the division between the manubrium and body of the sternum. The fifth intercostal space is where the apex of the heart is located, specifically the point of maximal impulse (PMI).
The nipple is located in the 4th intercostal space.
locate collar bone, right below is the first intercostal space then the second rib folows by second intercostal etc.
The heart valves can be approximated on the chest surface using specific auscultation points. The aortic valve is located in the second intercostal space at the right sternal border, the pulmonary valve is found in the second intercostal space at the left sternal border, the tricuspid valve is located at the fourth intercostal space near the left sternal border, and the mitral valve is situated at the fifth intercostal space in the midclavicular line on the left side. These locations help healthcare providers listen for heart sounds and assess valve function.
In the 6th intercostal space, important structures found include the internal mammary artery and vein, and the intercostal muscles and nerves. Additionally, in the left 6th intercostal space, the cardiac apex is located.
5th intercostal space at the midclavicular line
In the second intercostal space, right to the sternum.
The pulmonary valve is best heard in the second left intercostal space along the left sternal border. This location is known as the pulmonic area.
The apex
The aprical pulse is located midclavicular line, at the 5th intercostal space.
over the right sternal border and the second intercostal space(n.b. it seems paradoxical from the anatomy of the heart, where the aortic valve comes out from the left ventrical, but think of it as the aorta come out of the ventricle, it actually crosses over a bit to the right so it can form the arch of aorta