5 Questions
Which part of the sternum articulates with the medial end of the clavicle at the sterno-clavicular joint?
Manubrium
Which part of the sternum forms the sternal angle or angle of Louis?
Lower border
Which part of the sternum articulates with the lower half of the 4th costal cartilage?
Sternal angle
In sternal puncture for bone marrow biopsy, which feature of the sternum makes the procedure relatively easy?
Smooth posterior surface
During operations on the heart, which part of the sternum is typically split (sternotomy)?
Manubrium
Study Notes
Sternoclavicular Joint
- The medial end of the clavicle articulates with the sternal end of the first ribs at the sterno-clavicular joint.
Sternal Angle or Angle of Louis
- The manubrium forms the sternal angle or angle of Louis.
Costal Cartilage
- The body of the sternum articulates with the lower half of the 4th costal cartilage.
Sternal Puncture
- The narrow and flat feature of the sternum makes the procedure relatively easy for bone marrow biopsy.
Sternotomy
- The manubrium and body of the sternum are typically split during operations on the heart.
Test your knowledge of human anatomy with this quiz on the sternum. Identify key features and articulations, including the clavicular notch and sternal angle.
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