Shoulder Flashcards
List the extrinsic superficial muscles of the shoulder
Trapezius
Latissimus dorsi
Trapezius is composed of 3 parts - descending, transverse and ascending. What is the origin + insertion of descending trapezius?
Spinous processes of C1-C7
Lateral 1/3 of clavicle
Trapezius is composed of 3 parts - descending, transverse and ascending. What is the origin + insertion of transverse trapezius?
Spinous processes of T1-T4
Medial aspect of acromion
Trapezius is composed of 3 parts - descending, transverse and ascending. What is the origin + insertion of ascending trapezius?
Spinous processes of T5-T12
Scapular spine
What is the nerve + arterial supply to trapezius?
Spinal accessory nerve
Superficial cervical artery
What is the origin + insertion of latissimus dorsi?
Spinous processes of T7-L5/inferior angle of scapula
Lesser tuberosity of humerus
What is the nerve + arterial supply to latissimus dorsi?
Thoracodorsal nerve
Branch of subscapular artery
Which movements does latissimus dorsi enable?
Arm: adduction, extension, internal rotation
List the extrinsic deep muscles of the shoulder
Levator scapulae
Rhomboid major
Rhomboid minor
What is the origin + insertion of levator scapulae?
Spinous processes of C1-C4
Medial border of scapula
What is the nerve + arterial supply to levator scapulae?
Dorsal scapular nerve
Dorsal scapular artery
What is the origin + insertion of rhomboid minor?
Spinous process of C7-T1
Medial border of scapula
What is the nerve + arterial supply to rhomboid minor?
Dorsal scapular nerve
Transverse cervical artery
What is the origin + insertion of rhomboid major?
Spinous processes of T2-T5
Medial border of scapula
What is the nerve + arterial supply to rhomboid major?
Dorsal scapular nerve
Dorsal scapular artery