All of the Following Are Characteristics of Breath Sounds That

question 51

Multiple Choice

All of the following are characteristics of breath sounds that should be evaluated whenever chest auscultation is performed except:

• A)the breath rate.
• B)the pitch (vibration frequency).
• C)the amplitude or intensity (loudness).
• D)the duration of inspiration versus expiration.

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Definitions:

Spatial Summation

Summation of the local potentials in which two or more action potentials arrive simultaneously at two or more presynaptic terminals that synapse with a single neuron.

Action Potentials

Electrical impulses that travel along the membrane of nerve cells, allowing them to communicate with other cells.

Presynaptic Terminals

The end points of nerve cells (neurons) where neurotransmitters are released to transmit signals to other neurons or muscles.

IPSP

Inhibitory postsynaptic potential; a synaptic potential that makes a postsynaptic neuron less likely to generate an action potential.