4 Questions
Which muscle is responsible for shoulder elevation and scapula elevation?
Trapezius
Which nerve innervates the teres minor muscle for shoulder joint exorotation?
Axillary nerve (C5-C6)
Which part of the spine do the spinal processes of the rhomboid major muscle originate from?
Four upper thoracic vertebrae
Which muscle is responsible for shoulder adduction and scapula depression?
Teres major
Study Notes
Shoulder Muscles
- The trapezius muscle is responsible for shoulder elevation and scapula elevation.
- The axillary nerve innervates the teres minor muscle, enabling shoulder joint exorotation.
- The rhomboid major muscle originates from the spinal processes of T2-T5.
- The pectoralis major muscle is responsible for shoulder adduction and scapula depression.
Test your knowledge of the origins and insertions of the trapezius and accessory nerve (cranial nerve XI) in the shoulder and upper arm muscles.
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