Respiartory Phys - Breathing

Question 1

Upper Conducting airways

Answer 1

• Nose > Nasopharynx
• Oral Cavity > Oropharynx
• Hypopharynx > Glottis

Question 2

Lower Conducting airways

Answer 2

•Glottis > Trachea > Mainstem Bronchi > Lobar
Bronchi
• . . . > Terminal Respiratory Bronchioles

Question 3

Gas exchange Airways

Answer 3

• Terminal Bronchioles >

* Alveolar Ducts + Alveolar Sacs + Alveoli

Question 4

Trachea

Answer 4

• Fibroelastic tube extending
  
  • From the larynx at C6 in the neck
  • To its bifurcation at T6 in the thorax
• Approximately 11 cm x 2 cm x 2.5 cm
• Conducts inspired and expired gases
• Part of the air conditioning system

Question 5

Why do we see things in x-rays and other roentgenographic studies?

Answer 5

Differing radiodensities
air
fat
water
bone
metal

Question 6

Terminal Bronchiole

Answer 6

17th airway generation
Leads into the gas exchange region
Respiratory bronchioles .. Alveolar ducts .. Alveolar sacs .. Alveoli (23,000,000)

Question 7

What is the gas exchange region of the lungs?

Answer 7

parenchyma

Question 8

If airway pressure increases from zero to 15 cmH2O when a tidal volume of 600 ml is delivered, what is the patient’s lung-thorax compliance?

Answer 8

C=ΔV/ΔP
(units of measure: ml/cmH2O)
600/15=40 ml/cmH2O

Question 9

Equation for total lung compliance

Answer 9

1/CLT = 1/CL + 1/CT

CLT = VT / Δ PAW
CTL= total lung compliance
CL= lung compliance
CT= Thoracic compliance