Lecture #3 - anatomy of speech Flashcards
describe the three systems involved in the production of speech ?
- respiratory system
- laryngeal system
- articulatory system
describe the physiological functions and processes of the structure involved in speech :
in the most simplest terms what is the respiratory ?
The respiratory system is the part of your body that helps you breathe.
how does the respiratory system work ?
- Breathing in: You take in air through your nose or mouth. The air goes down your throat into your lungs
- Lungs: Inside your lungs, there are tiny air sacs called alveoli, where oxygen from the air moves into your blood
- Oxygen transport: Your blood carries this oxygen to the rest of your body so your cells can use it for energy
- Breathing out: Your body makes a waste gas called carbon dioxide, which you breathe out when you exhale
how many sections do we split the respiratory system into ?
2
what are the two sections we split the respiratory system into ?
upper and lower respiratory system
name the anatomical parts of the upper respiratory system :
- nasal passage
- oral cavity
- pharynx
- trachea
name the anatomical parts of the lower respiratory
- bronchi
- lung
- heart
- ribs
what does breathing allow ?
allows the exchange of gases to sustain life … oxygen comes in and CO2 & nitrogen exit
what is the respiratory cycle ?
= one single breath
what are the two phases of the respiratory cycle ?
inhalation and exhalation
what type of blood molecules go into the alveoli and out of the bloodstream ?
CO2
what type of blood molecules go out of the alveoli and into the bloodstream ?
O2
is inhalation an active or passive process ?
active
define inhalation :
Inhalation is when you breathe in. Air comes into your lungs, bringing in oxygen that your body needs.
define exalation :
Exhalation is when you breathe out. Air leaves your lungs, getting rid of carbon dioxide, which is a waste gas your body doesn’t need.
how many steps to inhalation are there ?
5
name the 5 steps to inhalation :
- diaphragm contracts (moves down)
- rib cage expands (moves up and out)
- lung volume increases
- negative pressure created relative to outside air
- air rushes in through mouth or nose (or both) to equalize air pressure
what way does your diaphragm move when breathing in ?
moves down
describe inhalation pressure relative to outside air …
pressure is negative compared to outside air
what way does your diaphragm move when breathing out ?
moves up
describe exhalation pressure relative to outside air …
positive pressure relative to outside air
how many steps to exhalation are there ?
5
name the 5 steps to exhalation :
- diaphragm relaxes
- chest wall returns to resting state
- lungs decrease in size
- positive pressure relative to outside air
- air rushes out
is active exhalation normal or forced ?
FORCED
contraction of abdominal and ribcage muscles
what happens to the chest and diaphragm when we breathe in ?
- chest expands
- diaphragm contracts / moves down
what happens to the chest and diaphragm when we breathe out ?
- chest contracts
- diaphragm relaxes / moves up
how many inspirations/expirations cycles do we average per minute ?
14-16
what are the two types of breathing ?
quiet and speech breathing
during quiet breathing how is duration split apart ?
inhale time = exhale time
during speech breathing how is duration split apart
10% inhalation and 90% exhalation
why do we have more % designated to exhalation ?
to ensure breath support for combining words and sentences
define quiet breathing :
is the normal, relaxed breathing you do when you’re just sitting or resting. You don’t think about it, and it keeps your body working by getting oxygen and releasing carbon dioxide. It’s gentle and automatic
define speech breathing :
is the type of breathing you use when you’re talking. You take in more air than usual so you can say longer sentences, and you control how you let the air out to help with speaking. It requires more effort and control than quiet breathing
what is the laryngeal system ?
is a part of your throat that helps with breathing, speaking, and swallowing. It includes the larynx (voice box), which holds the vocal cords.
what part of your respiratory system has your vocal cords ?
laryngeal system
what is another name for the larynx ?
the voicebox
how do your vocal cords work ?
when you talk, air from your lungs passes through the larynx, and the vocal cords vibrate to create sound
what are the two main functions of the laryngeal system ?
- prevent aspiration
- voice (phonation)
what is aspiration ?
happens when food, liquid, or other material enters a person’s airway and eventually the lungs by accident
define “prevent aspiration” :
- protects trachea
- elevates and contracts during swallow
what is the trachea also known as ?
the windpipe
define how what we mean by “voice” being one of the functions of the laryngeal system :
created by vibrations of two vocal folds (cords) within the larynx
what are the 6 anatomical parts within the larynx ?
- hyoid bone
- epiglottis
- arytenoid catilages
- vocal folds
- thyroid cartilage
- cricoid cartilage
define the hyoid bone; its function/importance/role :
- this is a small, U-shaped bone at the top of your neck
- it supports the larynx (voice box)
- helps with swallowing and speaking by giving muscles something to attach to
define the epiglottis; its function/importance/role :
- this is a flap of tissue that acts like a lid
- when you swallow, it closes over your windpipe to keep food and drinks from going down into your lungs
define the arytenoid cartilage ; its function/importance/role :
- these are two small, moveable pieces of cartilage at the back of the larynx
- they help move and control the vocal cords, which are important for making sound when you speak
define the vocal folds (cords) ; its function/importance/role :
- these are bands of tissue inside your larynx that vibrate when air passes through them, creating sound
- they are essential for talking, singing, and making any kind of voice sound
define the thyroid cartilage ; its function/importance/role :
- this is the largest cartilage in the larynx, shaped like a shield
- it helps protect the vocal cords and is what creates the “Adam’s apple” in your neck
define the cricoid cartilage ; its function/importance/role :
- this is a ring-shapes cartilage at the bottom of the larynx
- it supports the larynx and helps with breathing by keeping the airway open
where are vocal folds attached ?
in the front to the thyroid carylage and in the back to the two arytenoid cartilages
what does “glottis” mean ?
area between vocal folds
during voicing/phonation how many steps are there ?
5
what are the 5 steps to voicing/phonation ?
- arytenoids rotate to midline
- vocal folds adduct
- subglittal air pressyre builds
- vocal folds blown apart
- vocal fold tissue recoils
do vocal cords abd or adduct to BREATHE ?
abduct (seperate with space)
do vocal cords abd or adduct during activities like speaking or swallowing ?
adduct (closed together)
what is the “phonating position” ?
closes glottal opening
what is “voicing” ?
- one cycle of phonation
- repeated cycles of phonation
what does “one cycle of phonation” mean ?
vocal folds open and close
what do repeated cycles of phoation do ?
produce sound
when our vocal fols come together and vibrate very quickly what is produced ?
a voice
how many factors is pitch determined by ?
2
what are the two pitch determining factors ?
- rate
- size and mass of vocal folds
what is another word for “rate” ?
frequency