⭐️💆‍♀️Trapezius

Question 1

Origin

Answer 1

Upper trap:
External occipital protuberance
Medial 1/3 of superior nuchal line of the occipital bone from the Ligamentum nuchae
SP of C7
Middle trap:
SP of T1-T5
Lower trap:
SP of T6-T12

Question 2

Insertion

Answer 2

Upper trap:
Lateral 1/3 clavicle; and acromion of scapula
Middle trap:
Acromion and spine of scapula
Lower trap:
Tubercule at the root of the spine of scapula

Question 3

Function (upper)

Answer 3

Ext of head at alanto-occipital joint
Ext of neck at spinal joints
Lat flex of head at alanto-occipital joint
Lat flex of neck at spinal joints
Contralateral rot of head at alanto-axial joint
Contralateral rot of neck at spinal joints
Elevation of scapula at scapulocostal joint
Upward rot of scapula at scapulocostal joint

Question 4

Function (middle)

Answer 4

Retraction of scapula at scapulocostal joint

Question 5

Function (lower)

Answer 5

Upward rot of scapula at scapulocostal joint
Depression of scapula at scapulocostal joint

Question 6

Nerve

Answer 6

Spinal accessory nerve