Spinal part of deltoid at a glance
- What it is
- The posterior fibers of deltoid arising from the scapular spine.
- Location
- Originates from the spine of the scapula and inserts with the rest of deltoid onto the deltoid tuberosity of the humerus.
- Function
- Extends and laterally rotates the arm at the shoulder.
- Body system
- Muscular · paired (left and right)
- FMA ID
- FMA34684 (Foundational Model of Anatomy)
Key facts
- Innervation: axillary nerve (C5–C6)
- Blood supply: posterior circumflex humeral artery
Structures next to the spinal part of deltoid
The nearest named structures in the 3D model, measured from the centre of each part:
- Teres minor · muscular
- Infraspinatus muscle · muscular
- Teres major · muscular
- Subscapularis · muscular
- Circumflex scapular artery · cardiovascular
- Scapula · skeletal
- Thoracodorsal artery · cardiovascular
- Coracobrachialis · muscular
- Acromial part of deltoid · muscular
- Posterior circumflex humeral artery · cardiovascular
References
- Foundational Model of Anatomy: Spinal part of deltoid (FMA34684). EMBL-EBI Ontology Lookup Service.
- OpenStax. Anatomy and Physiology 2e, §11.2 Naming Skeletal Muscles. Rice University, 2022.
- Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.
Related anatomy
Explore the whole body in the interactive 3D human anatomy model, or browse the A–Z list of human structures.