Often when a person is trying to become healthier, they will look for food labeled "fat free" or "low fat." however, taken to an extreme, a low-fat diet could hinder some body functions. describe the functions of lipids and how a complete lack of lipids in the diet could affect body functions.

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.