Sternum

Os sternum

The sternum consists of three parts: the manubrium (superiorly), body (middle), and xiphoid process (inferiorly). The jugular notch is at the superior border of the manubrium. The sternal angle (angle of Louis) marks the junction of the manubrium and body at the level of the second rib.

Type Bone
Body System Skeletal
Body Region Thorax
Parent Structure thoracic segment organ
Latin Name Os sternum
FMA ID 7485

Function

The flat bone in the center of the anterior chest wall. Protects the heart and great vessels. Provides attachment for the costal cartilages of the upper seven ribs and the clavicles. Site of red bone marrow production.

Clinical Significance

Sternal fractures occur from direct trauma (steering wheel injuries). Median sternotomy is the standard approach for open-heart surgery. Sternal bone marrow aspiration and biopsy are common diagnostic procedures.

Frequently Asked Questions

What is the Sternum?
The sternum consists of three parts: the manubrium (superiorly), body (middle), and xiphoid process (inferiorly). The jugular notch is at the superior border of the manubrium. The sternal angle (angle of Louis) marks the junction of the manubrium and body at the level of the second rib.
What is the function of the Sternum?
The flat bone in the center of the anterior chest wall. Protects the heart and great vessels. Provides attachment for the costal cartilages of the upper seven ribs and the clavicles. Site of red bone marrow production.
What body system is the Sternum part of?
The Sternum is part of the Skeletal.
What conditions affect the Sternum?
Sternal fractures occur from direct trauma (steering wheel injuries). Median sternotomy is the standard approach for open-heart surgery. Sternal bone marrow aspiration and biopsy are common diagnostic procedures.
Where is the Sternum located?
The Sternum is located in the Thorax region of the body.

Related Structures

articular surface articular system joint system articulation joint Atlas (C1) Atlas attachment site axial skeleton plus cranial skeleton skeleton axiale Axis (C2) Axis bone collagen fibril

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