VET 403: Musculoskeletal

Comparative Anatomy, Biomechanics, Lameness Evaluation & Orthopedic Pathology

VET 403: MUSCULOSKELETAL SYSTEM & ORTHOPEDICS MODULE 1: COMPARATIVE SKELETAL ANATOMY - Bone classification and histology - Species-specific bone differences (equine vs canine vs bovine) - Joint anatomy: synovial, fibrous, cartilaginous - Ligaments, tendons, and fasciae - Articular cartilage: composition, nutrition, degeneration MODULE 2: MUSCLE PHYSIOLOGY & BIOMECHANICS - Muscle fiber types: slow-twitch oxidative vs fast-twitch glycolytic - Contraction mechanisms: actin-myosin cross-bridges - Energy metabolism in muscle - Biomechanics of locomotion across species - Weight distribution and load-bearing MODULE 3: LAMENESS EVALUATION - History taking in lameness cases - Physical examination: visual gait assessment, palpation, range of motion - Flexion tests and diagnostic anesthesia (joint blocks) - Lameness grading scales (AAEP for horses) - Localization: high vs low lameness MODULE 4: PATHOLOGIC RESPONSES TO MSK INJURY - Inflammation and repair processes - Degenerative joint disease (OA/DJD) - Fracture healing: inflammatory, soft callus, hard callus, remodeling phases - Tendon and ligament injuries - Systemic changes in chronic MSK disease MODULE 5: ORTHOPEDIC CONDITIONS - Hip dysplasia (canine, feline, equine) - Laminitis (equine) - Osteochondrosis (dissecans) - Arthritis and osteoarthritis - Ligamentous injuries (MCL, ACL)