Respiratory Anatomy

Question 1

What is classed as the extrathoracic airway?

Answer 1

The supraglottis, glottis (VC), infraglottis

Question 2

What is classed as the intrathoracic airway?

Answer 2

Trachea, bronchus, bronchioles, alveoli

Question 3

What is the significance of the sternal angle?

Answer 3

Lateral to the sternal angle, on the same plane is the 2nd rib, go down and you will find the 2nd ICS

Question 4

Name the layers of the diffusion barrier at the air-blood interphase.

Starting at RBCs.

Answer 4

Fluid lining inside of alveolus
Alveolar epithelial cell layer
Interstitial space/fluid
Endothelial cells lining capillary
Plasma
RBC membrane

Question 5

The conducting airway is an anatomical dead space.

What makes up the conducting airway?

Answer 5

Nose, pharynx, larynx, trachea, bronchi and bronchioles

Question 6

What are pleural reflections?

Answer 6

Abrupt lines when the parietal pleura changes direction from one wall of the pleural cavity to another wall

Question 7

Name the 2 lung recesses

Answer 7

Costomedial recess and Costodiaphragamatic recess