Upper BOdy Anatomy Review

What is the action of the trapezius upper fibers?

• Flexion of the elbow

• Elevation of scapula, Upward rotation of scapula, Extension of head, Rotation of head

• Flexion of the knee

• Abduction of the hip

Where do the trapezius upper fibers originate?

• Anterior aspect of the humerus

• Base of the skull, Occipital protuberance, Posterior ligaments of the neck

• Medial aspect of the femur

• Lateral aspect of the tibia

Where is the insertion point of the trapezius upper fibers?

• Anterior aspect of the humerus

• Posterior aspect of lateral 1/3 of clavicle

• Medial aspect of the femur

• Lateral aspect of the tibia

Which nerve is associated with the trapezius upper fibers?

• Spinal portion of cranial nerve XI (accessory) and ventral ramus, C2,3,4

• Radial nerve

• Ulnar nerve

• Median nerve

What is the action of the trapezius middle fibers?

• Flexion of the elbow

• Elevation of the scapula, upward rotation of scapula, retraction of scapula

• Extension of the knee

• Flexion of the hip

Where do the trapezius middle fibers originate?

• Spinous processes of C7 and T1-3

• Medial border of acromion process

• Lateral border of scapula

• Spinous processes of L1 and L2

Where do the trapezius middle fibers insert?

• Medial border of acromion process and upper border of scapular spine

• Lateral border of scapula

• Spinous processes of C7 and T1-3

• Inferior angle of scapula

Which nerve innervates the middle fibers of the trapezius?

• Spinal portion of cranial nerve XI (accessory) and ventral ramus, C2,3,4

• Radial nerve

• Ulnar nerve

• Median nerve

What is the action of the trapezius lower fibers?

• Elevation of scapula, Protraction of scapula, Downward rotation of scapula

• Depression of scapula, Retraction of scapula, Upward rotation of scapula

• Flexion of scapula, Abduction of scapula, Lateral rotation of scapula

• Extension of scapula, Adduction of scapula, Medial rotation of scapula

What is the origin of the trapezius lower fibers?

• Spinous processes of C1-C7

• Spinous processes of T4-T12

• Spinous processes of L1-L5

• Spinous processes of S1-S5