Which heart valve is located at the 4th intercostal space?

The aortic valve is located at the 4th intercostal space, typically situated on the left side of the thorax. This valve plays a critical role in the cardiac cycle, sealing off the left ventricle as blood is pumped into the aorta to supply the body with oxygenated blood. The anatomical positioning corresponds to where auscultation for heart sounds could be performed, aiding in the diagnosis of heart conditions.

The other valves have their own specific locations. For example, the pulmonary valve is generally found at the left side of the sternum around the 3rd intercostal space, while the tricuspid valve is located more toward the right side, near the 4th or 5th intercostal space along the sternal border. The mitral valve is best auscultated at the left 5th intercostal space, also close to the midclavicular line. Understanding these anatomical landmarks is essential for veterinary professionals as they relate to both physical exams and diagnostics.