Trapezius

Question 1

Proximal attachments trapezius

Answer 1

Upper:
External occipital protuberance
Medial 1/3 of the superior nuchal line (of occiput)
Nuchal ligament
Spinous process of C7
Middle:
Spinous process of T1-5
Lower:
Spinous process of T6-12

Question 2

Distal attachments trapezius

Answer 2

Upper:
Lateral 1/3 of clavicle
Acromion process (of scapula)
Middle:
Acromion process (of scapula)
Spine of scapula
Lower:
Tubercle at the root of the spine of the scapula

Question 3

Arterial supply trapezius

Answer 3

Transverse cervical artery
Dorsal scapular artery

Question 4

Innervation trapezius

Answer 4

Spinal accessory nerve (CN XI)
C3,4

Question 5

Actions trapezius

Answer 5

Upwardly rotates scapula
Retracts scapula
Depresses scapula
Elevates scapula @scapulocostal joints
Extends neck and head
Laterally flexes head and neck
Contralaterally rotates head and neck
@spinal joints