814
UNIT 4
Maintenance of the Body
22
Trachea
Apex of lung
Thymus
Right superior lobe
Horizontal fissure
Right middle lobe
Oblique fissure
Right inferior lobe
Heart
(in mediastinum)
Diaphragm
Base of lung
Left
superior lobe
Cardiac notch
Oblique
fissure
Left inferior
lobe
Lung
Pleural cavity
Parietal pleura
Rib
Intercostal muscle
Visceral pleura
(a) Anterior view.
The lungs flank mediastinal structures laterally.
(b) Photograph of medial view of the left lung.
Left main
bronchus
Pulmonary
vein
Cardiac
impression
Oblique
fissure
Lobules
Pulmonary
artery
Apex of lung
Hilum of lung
Aortic
impression
Esophagus
(in mediastinum)
Right lung
Parietal pleura
Visceral pleura
Pleural cavity
Pericardial
membranes
Sternum
Anterior
Posterior
Vertebra
Root of lung
at hilum
Left lung
Thoracic wall
Pulmonary trunk
Heart (in mediastinum)
Anterior mediastinum
(c) Transverse section through the thorax, viewed from above.
Lungs, pleural
membranes, and major organs in the mediastinum are shown.
• Lef
t main bronchus
• Lef
t pulmonary artery
• Lef
t pulmonary vein
Figure 22.10
Anatomical relationships of organs in the thoracic cavity.
In (c), the size of
the pleural cavity is exaggerated for clarity.
previous page 848 Human Anatomy and Physiology (9th ed ) 2012 read online next page 850 Human Anatomy and Physiology (9th ed ) 2012 read online Home Toggle text on/off