Which chamber of the heart is palpable in the left fifth intercoastal space??

a Left atrium
b Right atrium
c Left ventricle
d Right ventricle

Ans: Left Ventricle

Apex Beat. The apex beat or apical impulse is the palpable cardiac impulse farthest away from the sternum and farthest down on the chest wall, usually caused by the LV and located near the midclavicular line (MCL) in the fifth intercostal space.

Other areas where pulsations are palpable

Left Lower Sternal Area (Fourth Intercostal Space Near Left Edge of Sternum). Abnormal right ventricular and left atrial movements appear at this location.

Left Base (Second Intercostal Space Near the Left Sternum). Abnormal pulmonary artery movements or a palpable P2 appear at this location.

Right Base (Second Intercostal Space Near Right Edge of Sternum) and Sternoclavicular Joint. Movements from an ascending aortic aneurysm may become palpable here.