Respiratory System Lungs Intro (EXAM 1)

Question 1

Respiratory system role in speech

Answer 1

POWER SOURCE
Speech is made in exhalation stream (Aeromechanical level of observation)
SECONDARY ROLE
Mostly automatic, can be voluntary (loudness)

Question 2

Respiratory system role in biology

Answer 2

BREATHING
Oxygen in, carbon dioxide out
Speech breathing borrows respiratory system for secondary purpose of speech
PRIMARY ROLE

Question 3

Why is speech secondary?

Answer 3

Biological and speech needs different, breathing is more vital for life than speech
i.e. cannot talk while running

Question 4

Upper Respiratory Tract

Answer 4

Mouth, nose, pharyngeal cavity

Question 5

Lower Respiratory Tract

Answer 5

Larynx, trachea, bronchus, bronchioles, alveolar air sacs

Question 6

Upper Respiratory Tract’s 3 cavities:

Answer 6

1. Oral cavity
2. Nasal cavity
3. Pharyngeal cavity

Question 7

Upper Respiratory Tract Functions

Answer 7

PASSAGEWAY for air to go to and from the respiratory system (means of inhaling/exhaling)

Question 8

Larynx

Answer 8

Throat
Sits on top of trachea
Function: PROTECT passageway to respiratory system from foods or liquids

Question 9

Trachea (Vacuum cleaner hose)

Answer 9

Single airway below larynx
made up of horse-shoe shaped cartilage that maintains its shape
FLEXIBLE
Can be moved in various directions, can expand and collapse

Question 10

Bronchus(i)

Answer 10

2 principle branches
RIGHT principle branch has 3 secondary branches
LEFT principle branch as 2 secondary branches
still made up of horse-shoe shaped cartilage from trachea

Question 11

Bronchioles

Answer 11

Smaller branches off of secondary bronchi
COMPLETE circles of cartilage, no ridge or horse-shoe shaped cartilage
terminates into alveolar air sacs

Question 12

Alveolar air sacs (balloons)

Answer 12

Tiny air-filled balloons
surrounded by blood vessels for oxygen and carbon dioxide exchange
moisture in inside lining causes ST and tendency for it to collapse (leading to elastic recoil for passive exhalation)

Question 13

Elastic Recoil

Answer 13

Resistance of something to change
once the air sacs expand, elastic recoil is the force that will want to bring the sacs back to normal size (tendency to collapse)

Question 14

Emphysema

Answer 14

Example of S.T. impairment of air sacs
Air sacs enlarged because of rupturing of inner wall
no moisture/liquid molecules spread out causes lesser ST, lesser recoil, harder time exhaling
linked to cigarette smoking