trapezius muscle in dogs

A large superficial muscle that extends longitudinally from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula (shoulder blade). Its functions are to move the scapulae and support the arm. The trapezius has three functional regions: the superior region (descending part), which supports the weight of the arm; the intermediate region (transverse part), which retracts the scapulae; and the inferior region (ascending part), which medially rotates and depresses the scapulae. [WP,unvetted]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the trapezius muscle is

A large superficial muscle that extends longitudinally from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula (shoulder blade). Its functions are to move the scapulae and support the arm. The trapezius has three functional regions: the superior region (descending part), which supports the weight of the arm; the intermediate region (transverse part), which retracts the scapulae; and the inferior region (ascending part), which medially rotates and depresses the scapulae. [WP,unvetted]. The atlas records it as a muscle at the organ scale in the dog.

Where the trapezius muscle is

It sits within the muscular system. Only the system is known. The position shown carries almost no spatial information.

What the trapezius muscle connects to

The atlas records 6 typed relationships for it, across 4 kinds of connection. a kind of anatomical structure and muscle of shoulder.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the trapezius muscle. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.

Also called

Also recorded as trapezius, musculus trapezius and spinotrapezius. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002380, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• A kind of: anatomical structure and muscle of shoulder.
• antagonist of: latissimus dorsi muscle and serratus ventralis.
• inserts into: acromion.
• originates from: neural spine.

Questions

Where is the trapezius muscle?

It sits within the muscular system. Only the system is known. The position shown carries almost no spatial information.

What does the trapezius muscle connect to?

A kind of: anatomical structure and muscle of shoulder.

Is the trapezius muscle the same in other species?

This page describes the dog. The human record of the same structure sits beside it on /compare, over one shared model rather than two atlases built separately.