Exam 1 Flashcards
what does the respiratory system consist of?
lungs, muscles that expand and contract the lungs, air passages connecting the lungs to the atmosphere
what is considered the starting point of the speech production apparatus?
the larynx
what forms the vocal tract?
air passages from the larynx to the oral and nasal outlets
what is the larynx?
a structure of cartilage and muscle connecting the pharynx to the trachea
what are the vocal folds?
two muscle masses that go across the trachea
what is the glottis?
the space between the vocal folds
what is the root of the tongue and what can it do?
the vertical front wall of the pharynx that can move forward, enlarging the pharynx, or backward, constricting it
when the velum is up vs. down what happens?
when up, airflow is blocked from the nasal passage - when down, air flows through it
what is Boyle’s law?
at a constant temperature, lower volume = higher pressure - higher volume = lower pressure - if two spaces are connected, air flows from the space with higher pressure to the one with lower pressure until pressure is equal
how do you inhale?
enlarge the volume of the lungs by contracting the diaphragm and the external intercostal muscles which decreases air pressure in the lungs causing Boyle’s law
how do you exhale?
you squeeze the lungs by the walls of the lungs and the intercostal muscles along the ribs to decrease their volume, increasing pressure in the lungs enacting Boyle’s law
what is the default airflow in speech?
pulmonary egressive airflow (breathing out)
true or false: all spoken languages use egressive airflow for their sounds
false; all languages use it but not for every sound
which sound is made by constricting airflow in the oral cavity?
an obstruent
what is an example of pulsing airflow?
blowing a raspberry/ the Bronx cheer
what is Bernoulli’s effect?
as the rate of airflow is increased, pressure perpendicular to the direction of flow is reduced
what are the steps to making [f]?
the lower lip touches upper teeth, the tongue is low enough to not interfere with airflow, the velum is up, vocal folds are open enough and tense, allowing uninterrupted airflow through the glottis, exhale
what is a fricative?
a sound created by getting uninterrupted airflow through the vocal tract, and then putting an obstacle in the way of it
[f]
Fun
[θ]
THigh
[s]
Sigh
[ʃ]
SHy
[v]
Van
what determines the pitch of a voice?
the frequency of vibration (for men its longer and slower for women its shorter and faster)