Musculus pectoralis transversus
Connects the two forelimbs across the ventral chest. Adducts the forelimb and provides a muscular sling for the ventral thorax.
Origin: Cranial sternum
Insertion: Medial fascia of the forearm
Action: Adducts the forelimb; provides ventral thoracic support
Innervation: Cranial pectoral nerves (C7-C8)
Excessive lateral forces (wide jumps, slippery footing) can strain the transverse pectoral.
Excessive lateral forces (wide jumps, slippery footing) can strain the transverse pectoral. Signs include: Base-wide stance at rest; shortened stride; reluctance to turn tightly; pain on palpation between the front legs; swelling in the girth groove area.
See the Transverse Pectoral on our interactive 3D horse model. Open 3D Model