Lungs ( Handout ) Flashcards
What is the shape of the lungs?
Conical in shape
What is the main function of the lungs?
Oxygenate blood
Weight of a healthy adult lung
R lung: 620g
L lung: 570g
Parts of the lungs
Apex Base 2/3 lobes 3 borders 3 surfaces
Blunt superior end of the lungs that ascend above the level of the 1st rib into the root of the neck
Apex of the lungs
Concave inferior surface of the lungs that rests on the diaphragm
Base of the lungs
Has three lobes divided by the oblique and horizontal fissures
Right lung
The right lung is divided by what fissures
Oblique and horizontal
What are the three lobes of the R lung
Superior, middle and inferior lobe
Right or Left lung?
Larger and heavier
Shorter and wider
With straight anterior border
Right lung
Has two lobes and is divided by the oblique fissure
Left lung
The left lung is divided by what fissure
Oblique fissure
What are the lobes of the left lung?
Superior and inferior lobe
What is the indented anterior border of the left lung
Cardiac notch
Tongue-like process found on the left lung
Lingula
Most common accessory lobe found in the right lug
Azygos lobe
Line drawn along the 4th costal cartilage to meet the oblique fissure in the midaxillary line
Horizontal fissure
Where does the horizontal and oblique fissure meet?
Midaxillary line
Above the horizontal fissure is
A. Upper/superior lobe
B. Middle lobe
C. Inferior lobe
A. Upper/superior lobe
Below the horizontal fissure is A. Upper/superior lobe B. Middle lobe C. Inferior lobe D. Lower lobe
B. Middle lobe
Line drawn from the root of the spine of the scapula following the course of the 6th rib to 6th costochondral junction
A. Horizontal fissure
B. Oblique fissure
B. Oblique fissure
What lies above and anterior to the oblique fissure A. Upper/superior lobe B. Middle lobe C. Inferior lobe D. Lower lobe
A. Upper / Superior lobe
Lies below and posterior to the oblique fissure A. Upper/superior lobe B. Middle lobe C. Inferior lobe D. Lower lobe
D. Lower lobe
What are the borders of the lungs?
Anterior, posterior, inferior border
Border of the Lungs: Where the costal and mediastinal surfaces meet anteriorly and overlap the heart A. Anterior B. Posterior C. Inferior
A. Anterior
Border of the Lungs: Begins behind the sternoclavicular joint down to the xiphisternal joint A. Anterior B. Posterior C. Inferior
A. Anterior
- anterior border of the RIGHT LUNG
Border of the Lungs: Begins behind the sternoclavicular joint but deviates laterally at the level of the 4th costal cartilage then goes downward the xiphisternal joint A. Anterior B. Posterior C. Inferior
A. Anterior
- anterior border of the left lung
Anterior border that deviates laterally at the level of the 4th costal cartilage
A. Right lung
B. Left lung
B. Left lung
Where does the anterior border of the right and left lung begins
A. Sternoclavicular joint
B. Xiphisternal joint
A. Sternoclavicular joint
Where does the anterior border of the right and left lungs end
A. Sternoclavicular joint
B. Xiphisternal joint
B. Xiphisternal joint
Border of the Lungs: Where the costal and mediastinal surfaces meet posteriorly A. Anterior B. Posterior C. Inferior
B. Posterior
Border of the Lungs: Extends from the spinous process of the C7 to T10 A. Anterior B. Posterior C. Inferior
B. Posterior
The posterior border of the lungs extends from what spinous processes
C7 to T10
Border of the Lungs: Circumscribes the diaphragmatic surface of the lung A. Anterior B. Posterior C. Inferior
C. Inferior
What are the three surfaces of the lungs?
Costal, mediastinal, diaphragmatic
Surface of the lung: Large, smooth, convex A. Costal B. Diaphragmatic C. Mediastinal
A. Costal
Surface of the lung: Concave and forms the base of the lung A. Costal B. Diaphragmatic C. Mediastinal
B. Diaphragmatic
Surface of the lung: Related to the costal pleura A. Costal B. Diaphragmatic C. Mediastinal
A. Costal
Surface of the lung: Rests on the dome of the diaphragm A. Costal B. Diaphragmatic C. Mediastinal
B. Diaphragmatic
Surface of the lung: Concave and includes the Hilum of the lung A. Costal B. Diaphragmatic C. Mediastinal
C. Mediastinal
Posterior part of the costal surface is referred to as the _________ part
Vertebral part
Surface of the lung: (+) for impressions A. Costal B. Diaphragmatic C. Mediastinal
C. Mediastinal
Wedge-shaped part of the lungs that serves as the doorway for the bronchi, vessels and nerves
Hilum
Area of continuity between the visceral and parietal layers
Pleural sleeve
It is described as the pleural sleeve that descends inferior to the root
Pulmonary ligament
It is a loose fold that allows the movement of the pulmonary vessels and large bronchi during respiration
Pulmonary ligament
