ThoraxPleura & Lung
Dr. Muna Zuhair
Pleurae
Each pleura has 2 parts:
(a) Parietal layer.(b) Visceral layer.
Parietal layer.
Visceral layer.
Pulmonary ligament.
Pleural cavity (pleural space).
Pleural fluid.
Cervical pleura.
Costal pleura.
Diaphragmatic pleura.
Costodiaphragmatic recess.
Mediastinal pleura.
Lung root.
Costodiaphragmatic recesses.
Costomediastinal recesses.
Nerve supply of pleura
Lungs
Lungs in smoker & non-smoker.
Each lung has:
Apex.Base.
Costal surface.
Mediastinal surface.Hilum.
Root.Apex.
Base.
Costal surface.
Mediastinal surface.
Hilum.
Root.
Also each lung has :
Anterior border.Posterior border.
Anterior border.
Cardiac notch.
Posterior border.
Lobes and fissures of right lung
The right lung has 3 lobes & 2 fissures:Upper lobe.
Middle lobe.Lower lobe.
Oblique fissure.Horizontal fissure.
Lobes and fissures of right lung
Lobes and fissures of left lung
The left lung has 2 lobes & 1 fissure:Upper lobe.
Lower lobe.Oblique fissure.
Major structures related to right lung.
Major structures related to left lung.
Bronchopulmonary segments
Segmental (tertiary) bronchi.
Bronchopulmonary segment.
Bronchioles.
Terminal bronchioles.
Respiratory bronchiole.
Alveolar ducts.
Alveolar sacs.
The main characterestics of a bronchopulmonary segment are:
• It is a subdivision of a lung lobe.• It is pyramid shaped, with its apex toward lung root.
• It is surrounded by connective tissue.
• It has a segmental bronchus, a segmental a., lymph vessels, & autonomic nerves.
• Segmental v. lies in connective tissue between adjacent bronchopulmonary segments.
• A diseased segment can be removed surgically.
Right lung bronchopulmonary segments
Superior lobe: (1) apical. (2) pos. (3) ant.Middle lobe: (4) lat. (5) med.
Inferior lobe: (6) sup. (apical). (7) med. basal. (8) ant. basal. (9) lat. basal. (10) pos. basal.Right lung bronchopulmonary segments
Left lung bronchopulmonary segments
Superior lobe: (1) apical. (2) pos. (3) ant.(4) sup. Lingular. (5) inf. Lingular.
Inferior lobe: (6) sup. (apical). (7) med. basal.
(8) ant. basal. (9) lat. basal. (10) pos. basal.Left lung bronchopulmonary segments
Root of lung.
Blood supply of the lungs
Lymph drainage of the lungs
Superficial (subpleural) plexus.
Bronchopulmonary nodes.
Deep plexus.
Pulmonary nodes.
Tracheobronchial nodes.
Bronchomediastinal lymph trunks.
Nerve supply of the lungs
Pulmonary plexus.
