Clinical Phonetics: Module 2:Respiratory System and Speech Breathing

Flashcards covering the structures, mechanics, and time proportions of the respiratory system during normal breathing and speech breathing.

What structures are contained within the respiratory system?

The structures within the respiratory system include the lungs, trachea, rib cage, thorax, abdomen, diaphragm, and other major muscle groups.

How does the amount of air required for speaking compare to normal breathing?

More air is needed for speech than for breathing.

What percentage of time is spent on inhalation versus exhalation during normal breathing?

Breathing consists of 50% of time spent on inhalation and 50% on exhalation.

What percentage of time is spent on inhalation versus exhalation during speaking?

Speaking consists of 10% of time spent on inhalation and 90% on exhalation.

How does the thoracic cavity behave during inhalation and exhalation?

The thoracic (chest) cavity expands to allow air into lungs during inhalation, and it relaxes to allow air out of lungs during exhalation.

What role does the diaphragm play during inhalation and exhalation?

The diaphragm lowers (contracts) below the lungs to create space during inhalation, and it raises (relaxes) during exhalation.

What is the trachea and what does it connect?

The trachea (windpipe) is a tube that connects the lungs with the larynx.

What action do the external intercostals perform during speech breathing inhalation?

External intercostals contract to help expand the rib cage.

What happens to the internal intercostal muscles during speech breathing exhalation?

Internal intercostal muscles contract, causing the rib cage to shrink and lower.

What is the step-by-step process of inhalation during speech breathing?

It begins with a preparatory breath where air travels through the trachea, the diaphragm contracts and lowers so the thorax can expand, external intercostals contract to expand the rib cage, and changes in volume and pressure pull air into the lungs.

What occurs during the process of exhalation in speech breathing?

The lungs deflate, the diaphragm relaxes, the thorax returns to normal size, internal intercostal muscles contract causing the rib cage to shrink and lower, and air is expelled into the trachea.

What is the tube that connects the larynx and the lungs?

Trachea

What happens during exhalation for speech breathing?

During speech breathing exhalation, the lungs deflate, the diaphragm relaxes, and the thorax returns to its normal size. Additionally, the internal intercostal muscles contract, causing the rib cage to shrink and allowing air to be expelled into the trachea.