Disturbances in the heart sounds are called ........

Explanation

### Step-by-Step Solution:

1. **Understanding Heart Sounds**: The heart produces two main sounds during a heartbeat, commonly referred to as "lub" and "dub". The "lub" sound is the first heart sound (S1), produced by the closure of the atrioventricular valves, while the "dub" sound is the second heart sound (S2), produced by the closure of the semilunar valves.

2. **Identifying Disturbances**: When there are disturbances in these normal heart sounds, it indicates an abnormal condition. These disturbances can manifest as additional sounds or changes in the normal sounds.

3. **Defining the Disturbance**: The specific term used to describe disturbances in heart sounds is "murmur". A murmur is characterized by a blowing, whooshing, or rasping sound that can be heard during the heartbeat.

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