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Anatomy Muscle OIAs
| Question | Answer |
|---|---|
| Rectus abdominus | O- Pubic crest/symphysis I- Xiphoid process/costal cartilages A- Flexes the trunk |
| Gluteus maximus | O- Ilium/sacrum/coccyx I- Gluteal tuberosity of femur A- Extends the hip |
| Biceps femoris | O- Long head: ischial tuberosity Short head: linea aspera I- Head of fibula and lateral condyle of tibia A- Extends the hip/flexes the knee |
| Semitendinosus | O- Ischial tuberosity I- Medial, upper shaft of tibia A- Extends the hip/flexes the knee |
| Semimembranosus | O- Ischial tuberosity I- Medial condyle of tibia A- Extends the hip/flexes the knee |
| Psoas major | O- Lumbar vertebrae I- Lesser trochanter of femur A- Flexes the hip and trunk |
| Iliacus | O- Iliac fossa/ala of sacrum I- Lesser trochanter of femur A- Flexes the hip and trunk |
| Rectus Femoris | O- Anterior inferior iliac spine/acetabular labrum I- Patella/tibial tuberosity A- Extends the knee/ flexes the hip |
| Vastus medialis | O- Linea aspera/medial supracondylar line/Intertrochanteric line I- Patella/tibial tuberosity A- Extends the knee |
| Vastus lateralis | O- Linea aspera/greater trochanter/Intertrochanteric line I- Patella/tibial tuberosity A- Extends the knee |
| Vastus intermedius | O- Anterior shaft of femur I- Patella/tibial tuberosity A- Extends the knee |
| Adductor magnus | O- Ischial and pubic rami/ischial tuberosity I- Linea aspera/adductor tubercle of femur A- Adducts the hip |
| Gracilis | O- Inferior ramus and body of pubis/ischial ramus I- Medial condyle of tibia A- Adducts the hip |
| Gastrocnemius | O- Medial and lateral condyles of femur I- Posterior calcaneus (calcaneal tendon) A- Plantarflexion |
| Soleus | O- Superior tibia, fibula, and interosseous membrane I- Posterior calcaneous (calcaneal tendon) A- Plantarflexion |
| Tibialis anterior | O- Lateral condyle/proximal shaft of tibia I- Medial cuneiform/1st metatarsal A- Dorsiflexion |
| Sternocleidomastoid | O- Manubrium/clavicle I- Mastoid process A- Flexes and laterally rotates the head |
| Deltoid | O- Clavicle/acromion/spine of scapula I- Deltoid tuberosity of humerus A- Abducts the shoulder |
| Pectoralis major | O- Clavicle/sternum/costal cartilages I- Greater tubercle of humerus A- Flexes/medially rotates/adducts the shoulder |
| Biceps brachii | O- Short head: corocoid process of scapula Long head: supraglenoid tubercle I- Radial tuberosity A- Flexes/supinates the elbow |
| Triceps brachii | O- Long head: infraglenoid tubercle Lateral head: posterior shaft of humerus Medial head: posterior shaft of humerus I- Olecranon process A- Extends the elbow |
Created by:
bhammock
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