Trunk Muscles: Anterior And Posterior

1. Occipital bone...

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B

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G

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J

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2. Pectoralis major

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3. Rectus abdominus...

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4. Deltoid...

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J

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5. Sternocleidomastoid...

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B

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J

The correct answer is B because the sternocleidomastoid is a muscle located in the neck that originates from the sternum and clavicle and inserts into the mastoid process of the temporal bone. It is responsible for various movements of the head and neck, such as rotation and flexion.

Explanation

The correct answer is B because the sternocleidomastoid is a muscle located in the neck that originates from the sternum and clavicle and inserts into the mastoid process of the temporal bone. It is responsible for various movements of the head and neck, such as rotation and flexion.

6. Trapezius...

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J

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7. External oblique...

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8. Spinalis....

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9. Latissimus dorsi...

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J

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10. Humerus...

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J

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11. Zygomaticus

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12. Aponeurosis

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13. Spine of scapula

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J

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14. Internal oblique

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6

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15. Transverse abdominus

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16. Olecranon process of ulna (deep to tendon)

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J

The answer J is correct because the olecranon process of the ulna is located deep to the tendon. The olecranon process is a bony prominence at the upper end of the ulna, forming the point of the elbow. It serves as a attachment point for muscles and ligaments involved in elbow movement. The tendon referred to in the question is most likely the triceps tendon, which attaches to the olecranon process.

Explanation

The answer J is correct because the olecranon process of the ulna is located deep to the tendon. The olecranon process is a bony prominence at the upper end of the ulna, forming the point of the elbow. It serves as a attachment point for muscles and ligaments involved in elbow movement. The tendon referred to in the question is most likely the triceps tendon, which attaches to the olecranon process.

17. Massetar...

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18. Illiocostalis

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19. Orbicularis Oris...

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20. Longissimus...

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21. Deltoid (cut section)

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