AnaPhy of Respiration Flashcards
Speech System: Biological need that we have as humans in order to survive
Respiration
Speech System: voicing; Happens through vibration of the vocal folds
Phonation
Speech System: How our voice quality is made
Resonation
Speech System: Product of when our articulators come in contact with one another to create speech sounds
Articulation
What are the Speech Systems?
Respiration, Phonation, Resonation, Articulation
Frameworks of Respiration includes…
Bony thorax, Visceral thorax, and Muscles
Bony thorax
- Supports body’s physical structure
- Provides attachment to muscles through its processes
Vertebral Column
Bony thorax
- Provides the basis for respiratory framework
- Form point of attachment for the ribs and bony thorax
Thoracic Vertebrae
The joint between the thoracic vertebrae and the ribs allows for a ___ motion that enables the ribs to L___ R_____ against the vertebrae. This allows the ribs to _____ during _____→ rib cage expands → brings more volume of air in (necessary for gas exchange mechanism)
Gliding motion, laterally rotate, flare out, inspiration
Can flare out via lateral rotation d/t vertebral articulation
Ribs and Rib Cage
Rib Cage has a chondral portions attached to the ___
Sternum
12 ribs are classified as:
True (1-7), False (8-10), Floating (11-12)
Chondral portion has ___ properties that allows for the ribs to twist along the long axis without breaking
Elastic
Breast bone
Sternum
3 parts of Sternum
Manubrium Sterni, Corpus Sterni, and Xiphoid Process
Part of sternum that has facets that articulate with clavicle & first rib
Manubrium Sterni
Part of sternum that is attached to more ribs via cartilage
Corpus Sterni
Part of sternum that is the junction w/ corpus is where Cardiopulmonary resuscitation (CPR) is performed
Xiphoid Process
3 Respiratory Passageways
Mouth, Nose, Trachea
Known as the “windpipe”
Trachea
Trachea is made of…
Hyaline cartilage rings, smooth muscle, and mucous membrane lining
Trachea bifurcates/ divides into:
Right and Left bronchi
Angle of the right bronchi
20° - 30° angle
Angle of the left bronchi
45° - 55° angle
Which bronchi is more susceptible to foreign bodies?
Right Bronchi
Has cough receptors that are highly sensitive in the presence of foreign bodies; Known as our last line of defense since it occurs before the bifurcation of the right and left bronchi
Carina trachaea
Directly posterior to the trachea; In a collapsed condition unless occupied by bolus
Esophagus
Directly posterior to the trachea
Esophagus
Soft, spongy, porous elastic structures with specialized tissue for gas exchange
Lungs
Which lung is broader, bigger, shorter
Right lung
Increasingly smaller tubes that progress into the depths of the lungs
Secondary and Tertiary Bronchi
Where does the Secondary and Tertiary Bronchi end?
Terminal respiratory bronchioles
Final respiratory gas exchange region
Alveoli
Most protected region in the body; House the heart and other vital structures
Mediastinum
Respiration process
Air → comes in the nasal and oral cavities → passes through the trachea → trachea bifurcates into right and left main bronchi → supply right and left lungs → (within the lungs) secondary and tertiary bronchi (end at the terminal respiratory bronchioles → alveoli
Boyle’s Law: Pressure and volume have an ___ relationship
Inverse
Gases like oxygen will only move _____ the pressure gradient
down
Explain the syringe analogy for the Boyle’s Law
Pull the barrel down, the volume increases → Pressure turns negative compared to the outside pressure so the gas will rush in
Push the barrel up, the volume decreases → Pressure turns positive compared to the outside pressure so the gas will move out
Primary muscle for inspiration (quiet breathing)
Diaphragm
What happens to the diaphragm when we inhale?
Contracts, flattens, moves downward
Innervation of the Diaphragm
Phrenic Nerve (C3, C4, C5)
Muscles that move UP and OUT to expand ribcage during quiet breathing
CLUE: EXCITED
External Intercostals
Muscles that only have some participation/involvement during inspiration via the interchondral portion
Internal Intercostals
Accessory muscle during inspiration that elevates sternum, rib cage
Sternocleidomastoid
Accessory muscles during inspiration that elevates rib cage
Serratus Posterior Sup.
Levatores Costarum
Accessory muscle during inspiration that elevates upper ribs
Scalenus
Accessory muscle during inspiration that elongates neck
Trapezius
Accessory muscle during inspiration that increases transverse dimension of ribs
Pectoralis Major
Accessory muscle during inspiration that elevates rib 1
Minor Subclavius
Accessory muscle during inspiration that elevates scapula
Levator Scapulae
Accessory muscles during inspiration that stabilizes shoulder girdle
Rhomboideus Major, Minor
What happens to the diaphragm when we exhale?
Relax and return to its dome-shape
What happens to the rib cage muscles when we exhale?
Relax
Primary muscle of expiration
Compress the rib cage
CLUE: When you’re feeling DOWN/ DEPRESSED you want to stay INdoors
Internal Intercostals
Accessory muscles during expiration that depresses rib cage
Transversus Thoracis
Serratus Posterior Inf.
Subcostal
Accessory muscle during expiration that stabilizes abdominal wall
Latissimus Dorsi
Accessory muscles during expiration that compresses abdomen
Transversus Abdominis
Internal & External Oblique
Quadratus Lumborum
Accessory muscle during expiration that flexes vertebral column
Rectus Abdominis
Accessory muscle during expiration that flexes vertebral column
Rectus Abdominis
1 Respiratory Cycle involves ___
Inspiration AND Expiration
An adult completes ____ cycles of respiration PER MINUTE
12-18 cycles
Amount of air that we breathe in and out during quiet breathing
Tidal volume (TV)
Amount of air that we can maximally try to inhale
Inspiratory Reserve Volume (IRV)
Volume of air that we can maximally try to exhale
Expiratory Reserve Volume (ERV)
No matter how much we try to exhale, there is always an amount of air that will be left in our lungs
Residual Volume (RV)
Combination of 2 or more lung volumes
Lung capacities
Formula for Inspiratory Capacity
TV + IRV
Formula for Functional Residual Capacity
ERV + RV
Formula for Vital Capacity
IRV + TV + ERV
Formula for Total Lung Capacity
IRV + TV + ERV + RV
For continuous speech, we need ___ pressure
constant
Inhalation takes __% of the cycle, exhalation takes ___%
40% ; 60%
Loud speech needs pressure, ___ is key
increased initial volume