Updated: 12/15/2020

Lung Relationships

0%
Topic
Review Topic
0
0
N/A
N/A
Questions
1
0
0
100%
0%
Evidence
2
0
0
Topic
Overview

Lungs

  • Extent of Lungs
    • apex is located above the clavicle 
    • base rests on the diaphragm
  • Right Lung
    • 3 lobes
      • upper (superior), middle, and lower (inferior) lobes
    • 2 fissures
      • oblique (major) fissure separates upper and lower lobes
      • horizontal (transverse) fissure separates upper and middle lobes
  • Left Lung
    • 2 lobes
      • upper (superior) and lower (inferior) lobes
    • 1 fissure
      • oblique fissure
    • cardiac notch
      • an indentation consequent to the deviation of apex of heart to left side
        • lingula is a flap of lung tissue of the left upper (superior) lobe that lies below cardiac notch
          • homolog of right middle lobe
        • the apex of the heart is covered anteriorly by the left lung
          • lies at the left fifth intercostal space at the midclavicular line
  • Hilum of Lung
    • a wedge-shaped area on mediastinal surface of each lung through which structures forming root of lung pass to enter or to exit lung
    • Relationship of pulmonary artery (PA) to bronchus ("RALS")
      • right lung: anterior to bronchus
      • left lung: superior to bronchus
  • Trachea
    • bifurcates into left and right (primary) main bronchi at level of sternal angle
      • right (primary) main bronchus is shorter, wider, and runs more vertically
        • foreign body is more likely to pass through right (primary) main bronchus and into right lung 
          • upright position
            • inferior (basal) portion of right lower (inferior) lobe
          • supine position
            • posterior portion of the right upper lobe
            • superior portion of right lower (inferior) lobe

Please rate topic.

Average 5.0 of 7 Ratings

Questions (1)
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Evidence (2)
EXPERT COMMENTS (22)
Private Note