Lecture #3 - anatomy of speech Flashcards
(160 cards)
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