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Lungs

lawaiHŁUMMiasraMPrai

Medial Surface of Kight Lung

Medial Surface of Left Lung

Croove for subdavian artery.

Area for trachea Apex and esophagus

.Groove for ' subclavian artery

Groovc for brachiocephalic (innominate) vein v

Area for esophagus

Groove for superior vena i

,R. upper lobe bronchus ✓ Upper lobe

Groove for arch of aorta _>

Upper lobe.

Groove for brachiocephalic (innominate) vei

Area for Ihymus and mediastinal fatty tissue -

■ Obliguc fissure ■ ^Lower lobe—

-Area for

thymus and

mediastinal

■ Cul edge of pleura-

tatty tissue

■Pulmonary arteries—— •Bronchial arteries —‘

I lori/ontal fissure--

•Bronchi

•Superior

pulmonary

^L Cardiac

Cardiac

depression'

lobe^

Obliqu

fissure^ yr Lower lobe^ Diaphragmatic surface

' Lymph nodes -•Interior pulmonary s

Groove for descending

-Cardiac

notch

Oblique

fissure

• Lingula

/ Groove for esophagus Pulmonary ligament

aorta-

Lower lobe

Pulmonary ligament <

2 tor esophagus Ł F/*

Diaphragmatic surface

IB\

Figurę 5.1 Medial Surface of the Lungs

Brealhing, or ventilation of the lungs. is an automatic. usually rhyth-mic, and centrally controlled process. The right lung has three lobes. and the left lung has two lobes. with the bronchi, pulmonary ve$sels. nerves, and lymphatics enlering or leaving each lung at the hilum.

which is situated on the medial aspect of the lung. The trachea bifur-cates into primary bronchi, which then enter the lobes of the lung and further subdivide into smaller and smaller segmenłs (bronchioles and ultimately alveolar ducts and sacs).

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