OIA Flashcards
Biceps brachii - Origin
Coracoid process, supraglenoid tubercle
Biceps brachii - Insertion
Radial tuberosity
Biceps brachii - Action
Elbow flexion, supination
Triceps brachii - Origin
Posterior humerus, infraglenoid tubercle
Triceps brachii - Insertion
Olecranon process
Triceps brachii - Action
Extension of lower arm
Rectus abdominis - Origin
Pubic crest, symphysis pubis
Rectus abdominis - Insertion
Xiphoid process
Rectus abdominis - Action
Trunk flexion, expiration
Gluteus maximus - Origin
Crest of ilium, sacrum, coccyx
Gluteus maximus - Insertion
Posterior aspect of greater trochanter
Gluteus maximus - Action
Hip extension, external rotation of hip
Rectus femoris - Origin
Anterior inferior iliac spine
Rectus femoris - Insertion
Patellar tibial tuberosity
Rectus femoris - Action
Knee extension
Biceps femoris - Origin
Ischial tuberosity, linea aspera
Biceps femoris - Insertion
Head of fibula
Biceps femoris - Action
Extension of hip, flexor of knee
Pectoralis major - Origin
Clavicle, sternum, 1-6 ribs
Pectoralis major - Insertion
Intertubercular groove of humerus
Pectoralis major - Action
Internal rotation, adduction, flexion of arm
Latissimus dorsi - Origin
Lumbar and lower thoracic vertebrae, iliac crest, sacrum
Latissimus dorsi - Insertion
Intertubercular groove of humerus
Latissimus dorsi - Action
Adductor, extensor, and internal rotator of arm
Gastrocnemius - Origin
Lateral and medial condyles of femur
Gastrocnemius - Insertion
Calcaneus via Achilles tendon
Gastrocnemius - Action
Plantar flexion, knee extension
Trapezius - Origin
Base of occipital bone, cervical & thoracic vertebrae
Trapezius - Insertion
Spine of scapula, acromion, clavicle
Trapezius - Action
Scapular elevation, adduction, retraction; extends neck
