Events of Respiration
Where sends signals to the muscles around the lungs for respiration?
The autonomic nervous system
What is the respiratory system made up of?
The pulmonary apparatus and the chest wall
What structure is responsible for generating airflow during speech productions?
Diaphragm
What muscle initiates inhalation during a respiratory cycle?
Diaphragm
Which intercostal muscles allow for inspiration?
External intercostal muscles
What happens to the volume in the lungs during inspiration?
Volume increases
What are the pulmonary apparatus and chest wall connected by?
“Pleural Linkage”
What muscles are involved in controlling lung volume during speech?
Intercostal muscles
Describe the primary movement of the diaphragm during inhalation.
Downward Contraction
Which intercostal muscles allow for exhalation?
Internal intercostal muscles
The pulmonary vein carries what type of blood from the lungs to the heart?
Oxygenated blood
How many ribs do we have, and how are they divided?
14 true ribs, 6 false ribs, and 4 floating ribs
What role do vocal folds play in speech production?
control the pitch and loudness of our voice.
Which lung volume represents the air inhaled during normal breathing?
Tidal Volume (TV)
When inhaling, what happens to the diaphragm?
During inhalation, the diaphragm flattens, allowing the ribcage to rise and let in air.
Where does gas exchange occur?
Alveoli
What structure of the respiratory system has the most flexibility?
The bottom ⅔ of the rib cage, where the lungs expand and gas exchange occurs.
True or False? The primary role of the respiratory system in speech production is to provide airflow for vocal fold vibration.
TRUE
What is the primary mechanism for air to flow into the lungs during inhalation?
Pressure gradient
During exhalation, what happens to the diaphragm?
The diaphragm rises back to dome shape, allowing for the ribcage to descend.
During breathing, what happens to the velopharyngeal muscles?
They are relaxed
How many lobes are there in the lungs?
5; 3 on the right and 2 on the left
Which of the following is a component of speech production?
Articulation, Respiration and Phonation
Which lung capacity is the sum of tidal volume and inspiratory reserve volume?
Inspiratory Capacity
During inhalation, intercostal muscles ____. During exhalation, intercostal muscles ____.
Contract, Relax