Sternum (Bone)

Authors

Affiliations

Nathaniel Yomogida, B.S., SPT

Doctor of Physical Therapy

B.S. in Kinesiology

Chloë Kerstein, B.S., SPT

Doctor of Physical Therapy

B.A. in Neuroscience

Articulations

Sternoclavicular joint

Articulation between clavicular facets of the sternum with the clavicle¹

Sternocostal Joints

The first sternocostal joint is immediately inferior to the sternoclavicular joint.

Manubriosternal Joint

One of the intrasternal joints of the sternum¹.

Xiphisternal Joint

One of the intrasternal joints of the sternum¹. The xiphisternal joint connects the xiphoid to the sternum and is an articulation made of fibrocartilage¹.

Note

By 40 years old, the xiphisternal joint often ossifies¹.

Osteologic features

• Manubrium
• Jugular notch
• Clavicular facets
• Body
• Costal facets
• Xiphoid process

Manubrium

Jugular notch

Clavicular facets

Body

Costal facets

Xiphoid process

Attachments

Muscles attached to the sternum

Muscle	Origin	Insertion	Nerve	Action
Pec Major	/The Archive/Anatomy/Skeletal Muscles/Upper Limb Muscles/Axioappendicular Anterior Muscles/pectoralis_major_muscle.html#origin	/The Archive/Anatomy/Skeletal Muscles/Upper Limb Muscles/Axioappendicular Anterior Muscles/pectoralis_major_muscle.html#insertion	?var:ref-pectoralis-major.nerve	/The Archive/Anatomy/Skeletal Muscles/Upper Limb Muscles/Axioappendicular Anterior Muscles/pectoralis_major_muscle.html#action

Manubrium

Sternocleidomastoid OIAN

Muscle	Origin	Insertion	Nerve	Action
Sternocleidomastoid	/The Archive/Anatomy/Skeletal Muscles/Head and Neck/Neck Muscles/Sternocleidomastoid muscle/sternocleidomastoid_muscle.html#origin	/The Archive/Anatomy/Skeletal Muscles/Head and Neck/Neck Muscles/Sternocleidomastoid muscle/sternocleidomastoid_muscle.html#insertion	?var:ref-sternocleidomastoid.nerve	/The Archive/Anatomy/Skeletal Muscles/Head and Neck/Neck Muscles/Sternocleidomastoid muscle/sternocleidomastoid_muscle.html#action

References

1.

Neumann DA, Kelly ER, Kiefer CL, Martens K, Grosz CM. Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation. 3rd ed. Elsevier; 2017.