What happens at the sternal angle of Louis?

The movement at the sternal angle allows the body of the sternum to move anteriorly and superiorly. This increases the volume of the intrathoracic cage and in particular, allows transverse expansion in the lower thoracic cage leading to maximal airflow.

What is the sternal angle of Louis?

The sternal angle (angle of Louis) is the name of the manubriosternal joint. It is a fibrocartilage joint that allows for some movement acting like a hinge so that the body can move anteriorly during deep inspiration.

How do you palpate the angle of Louis?

To find it on yourself, place your fingers gently at the base of your throat in a central position and move your fingers downward until you can feel the top of the sternum, or rib cage. From this position, continue to move your fingers downward until you feel a boney lump. This is the “angle of Louis”.

What is angle of Louis in anatomy?

The angle of Louis is the eponymous name given to the sternal angle which is the palpable anatomical feature formed from the manubriosternal junction. The manubriosternal junction is the joint of the sternal body and the manubrium.

Why is it called the angle of Louis?

1 This anatomic landmark is named after the French surgeon Antoine Louis (1723–1792). Since then, the medical literature has variously described this landmark as the Angle of Louis, Lewis, and Ludwig.

What does the angle of Louis help find?

The angle of Louis (also called the sternal angle) is a useful place to start counting ribs, which helps localize a respiratory finding horizontally. If you find the sternal notch, walk your fingers down the manubrium a few centimeters until you feel a distinct bony ridge. This is the sternal angle.

Where is the angle of Louis located?

The sternal angle (of Louis) is the angle between the manubrium and body of the sternum it is located 5 cm inferior to jugular notch at the level of the 2nd costal cartilage; thus, it is a useful landmark for rib counting since the first rib is difficult to feel.

Where is angle of Louis located?

The sternal angle (of Louis) is the angle between the manubrium and body of the sternum it is located 5 cm inferior to jugular notch at the level of the 2nd costal cartilage; thus, it is a useful landmark for rib counting since the first rib is difficult to feel. What it the vertebral level of the sternal angle?

Which part of the respiratory system is referred to as angle of Louis?

Which part of the respiratory system is referred to as Angle of Louis? Carina. Located at the level of the manubriosternal junction, the carina is also referred to as the Angle of Louis. The mainstream bronchi, pulmonary vessels, and nerves enter the lungs through a slit called the hilum.

Where is angle of Louis?

The sternal angle (also known as the angle of Louis, angle of Ludovic or manubriosternal junction) is the synarthrotic joint formed by the articulation of the manubrium and the body of the sternum. Anterior surface of sternum and costal cartilages. (Sternal angle not labeled, but visible at second costal cartilage.)