When you feel wind on your face, your are experiencing... It has nothing to do with the movement of air molecules,
air molecules moving from a high to low pressure,
air molecules not moving in any particular direction
air molecules moving from low to high pressure.

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.