3 Major Bones

Major bones of the body and the muscles that attach to each
1. Clavicle: it is the insertion of the upper trapezius muscle which is responsible for scapula elevation and extension of the head and neck.
2. Humerus: long bone to which the brachialis muscle is attached at its distal half of the anterior portion of the humerus to help flexion of the elbow.
3. Radius: it is the insertion of the brachioradialis muscle which is responsible for supination and pronation of the arm
4. Femur: it is the origin of the vastus intermedius at its upper 2/3 of the anterior surface, the muscle is helping in knee extension.
5. Tibia: it is the origin of the tibialis anterior muscle which is attached to the upper 2/3 of the lateral surface of the tibia. It works for dorsal flexion of the ankle, inversion of the foot.
6.
Thoracic vertebrae: it is the origin of the lower trapezius muscle which is attached to the spinous process of T4-T12 that helps in the upward rotation of the scapula.
7. Cervical vertebrae: C1 to C4 are the origin of elevator scapula muscles that elevates media margin of scapula.
8. Lumbar vertebrae: it is one of the origins of the Latissmus Dorsi which attaches to the back of the sacrum and spinous process of lumbar and lower T6-T12 , posterior crest of Ilium and slips from the last 3 ribs , the Latissmus Dorsi is responsible for adduction , extension , horizontal abduction and internal rotation of glenohumeral joint
9. Ilium: it is the origin of the rectus femoris muscle that is attached to the anterior iliac spine of the Ilium and a groove above the acetabulum to flex the hip and extend the