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Dog · Muscle · Thoracic limb

Major teres muscle

Musculus teres major

Flexes the shoulder and rotates the arm medially.

System
Muscle
Region
Thoracic limb
Sides
Paired: left and right

Where it runs from and to

A muscle is told apart from its neighbours by what it takes hold of at each end, which is also what decides what it does when it shortens.

Origin
Scapula, at its caudal angle and the adjoining caudal edge.
Insertion
Teres major tuberosity on the medial humeral shaft, shared with the latissimus dorsi tendon.
Action
Flexes the shoulder and rotates the arm medially.
Nerve
Axillary nerve.

Written for Vetomica in its own words from the standard reference anatomy of the dog; the books it was checked against are listed below.

What it works on

Medial; caudal to subscapularis.

Bones it takes hold of

Muscles and ligaments it works with

  • Subscapularis
  • Latissimus dorsi
  • Triceps brachii long head
  • Infraspinatus
  • Tensor fasciae antebrachii

Terminology

English
Major teres muscle
Latin (NAV)
Musculus teres major
Status
A valid term in the Nomina Anatomica Veterinaria

References

Where to read this structure in full, and where the named parts above were read.

  • NAV 2017Myologia: musculi membri thoracici
  • Miller's Anatomy of the Dog, 5th ed.The Muscular System: muscles of the thoracic limb
  • König & LiebichMuscles of the thoracic limb
  • Dyce, Sack & WensingThe forelimb of the carnivores