1. Ⅴ. Lung: Position: located in the thoracic cavity, both sides of the
mediastinum, above the diaphragm

2. an apex External features: a base 2 surfaces— mediastinal and
costal surfaces
3 borders–
anterior border,
inferior border,
posterior border

3. Fissures and lobes of the lungs:
left lung – 2 lobes ( by oblique fissure)
superior lobe (lingula)
inferior lobe
right lung – 3 lobes
(by oblique and
horizontal fissures):
superior lobe
middle lobe,

4. Hilum of lungs (medial view of the lungs)
It is the center part of mediastinal surface.
The arrangement of main structures as follows:
from anterior to posterior---
pulmonary v.,
pulmonary a.,
main bronchus
(both sides)
from superior to inferior---
right lung– bronchus of sup. lobe, left lung– pulmonary a.,
pulmonary a., main bronchus,
bronchus of inf. lobe, pulmonary v.
pulmonary v.

5. The structures of the lung: two parts
--- bronchial tree:
principal bronchus---
lobar bronchi---segmental
bronchi--- bronchioles---
terminal bronchioles
--- alveoli of the lung:

6. The Segments of the lung: bronchopulmonary segments

7. Ⅵ. The Pleura and pleural cavities:
The definition
The Parts:
Visceral pleura
Parietal pleura----
Cupula
Costal pleura
Mediastinal pleura
Diaphragmatic pleura
The pleural cavity and pleural recess :
a potential space, contains a few of serous fluid; 2 pleural cavities are
separated from each other by the mediastinum; They are negative pressure
(to the atmospheric pressure).
costodiaphragmatic recess

8. Ⅴ. Mediastinum: The definition The divisions: 4 parts 3 parts
The containts: from
the left side
the right site
right view
Left view