Musculus sacrocaudalis dorsalis lateralis
Elevates and laterally deviates the tail. One of the four main tail muscles controlling dorsal and lateral tail movement.
Origin: Articular processes of sacral and caudal vertebrae
Insertion: Dorsolateral caudal vertebrae
Action: Elevates the tail and moves it laterally
Innervation: Caudal (coccygeal) spinal nerves
Polyneuritis equi is an immune-mediated demyelinating disease of the cauda equina and cranial nerves (especially trigeminal and facial). Granulomatous inflammation of nerve roots. Associated with EHV-
Polyneuritis equi is an immune-mediated demyelinating disease of the cauda equina and cranial nerves (especially trigeminal and facial). Granulomatous inflammation of nerve roots. Associated with EHV-1 and P2 myelin protein. Signs include: Tail paralysis; perineal anesthesia; fecal and urinary incontinence; hindlimb weakness.; Loss of anal tone; fecal incontinence; urinary incontinence; flaccid tail; reduced perineal sensation; often from EHV-1, trauma, or polyneuritis equi.; Progressive tail and anal sphincter paralysis; fecal retention; perineal hypalgesia; rubbing tail base; if cranial nerves involved: facial paralysis, trigeminal dysfunction, dysphagia; Flaccid, dilated anus; fecal staining of the hindquarters; often accompanied by tail paralysis, urinary incontinence, and perineal anesthesia.; Flaccid, hanging tail with no voluntary movement; urine scalding of hindlimbs; fecal retention or incontinence; reduced anal tone; often from trauma, EHV-1, or polyneuritis equi.
See the Sacrocaudalis Dorsalis Lateralis on our interactive 3D horse model. Open 3D Model