Respiratory System Chapter 7 Perry C. Hanavan, Au.D.

Question What is the function the respiratory system? Absorb moisture Breathing Speech All the above B and C

Function Life support Exchange CO2 with O2 Speech Energy source

Question What is the thorax? Mouth Lungs Chest Abdomen Throat

Question What is the function of the alveoli? Exchange N2 with O2 Exchange CO2 with O2 Exchange CO2 with H20 Exchange N2 with H2O2 None of these make sense?

Question Which lung do you think might be larger? Right Left Neither Does it matter

Question What is the major muscle of respiration? Internal intercostals External intercostals Neck muscles Diaphragm Internal respiratory muscle

Basic Components Thoracic cavity Neck Abdomen Rib cage Spinal column Muscles Pharynx Larynx Abdomen Viscera

Spinal Column Spinal Column Abnormal column

Thorax Gross Anatomy X-ray of thorax Pleura Breathing animations Respiratory muscles

Lungs Gross Anatomy Alveoli Alveoli Air Pressure Lung Model Breathing

Healthy vs. Unhealthy Lungs

Spirometer

Question Can you exhale all the air in your lungs? True False

Lung Volumes & Capacities TV IRV ERV RV Lung Capacities: VC FRC TLC

Question The air you normally breath in and out is: VC TV IRV TLC

Question All the air in you lungs is: VC TV IRV TLC

Lung Volumes and Vital Capacity

Speech Breathing More complex than quiet breathing Coordination of breathing with linguistic utterances Appropriate place to inhale Appropriate amount of air to inhale & exhale Prosodic variations

Question Average number of breaths per minute in an adult: 40-60 20-40 12-18 1-12 More than 60

Lung Developmental Changes

Lung Developmental Changes

Lung Developmental Changes

Life vs. Speech Breathing Nose Inhale 40% of time Exhale 60% of time 10 % of vital capacity Muscles of thorax and diaphragm Speech Mouth Inhale 10% of time Exhale 90% of time 20-25 % of vital capacity Thoracic and abdominal muscles exhale inhale exhale in

In speech breathing we inhale: 10 percent of the time 40 percent of the time 60 percent of the time 90 percent of the time 50 percent of the time

In life breathing we exhale: 10 percent of the time 60 percent of the time 40 percent of the time 90 percent of the time 50 percent of the time

Patterns

Measurement Devices Pneumatochograph used to measure airflow Plethysmograph suit monitors the movements of both the abdomen and ribcage Magnetometer is two coils of wire which generate an electromagnetic field

Diseases Parkinson's disease Cerebellar disease Cerebral palsy Mechanical ventilation Voice problems Hearing problems