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Flashcards in Shoulder Deck (31)
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1

List the extrinsic superficial muscles of the shoulder

Trapezius
Latissimus dorsi

2

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

3

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

4

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

5

What is the nerve + arterial supply to trapezius?

Spinal accessory nerve
Superficial cervical artery

6

What is the origin + insertion of latissimus dorsi?

Spinous processes of T7-L5/inferior angle of scapula
Lesser tuberosity of humerus

7

What is the nerve + arterial supply to latissimus dorsi?

Thoracodorsal nerve
Branch of subscapular artery

8

Which movements does latissimus dorsi enable?

Arm: adduction, extension, internal rotation

9

List the extrinsic deep muscles of the shoulder

Levator scapulae
Rhomboid major
Rhomboid minor

10

What is the origin + insertion of levator scapulae?

Spinous processes of C1-C4
Medial border of scapula

11

What is the nerve + arterial supply to levator scapulae?

Dorsal scapular nerve
Dorsal scapular artery

12

What is the origin + insertion of rhomboid minor?

Spinous process of C7-T1
Medial border of scapula

13

What is the nerve + arterial supply to rhomboid minor?

Dorsal scapular nerve
Transverse cervical artery

14

What is the origin + insertion of rhomboid major?

Spinous processes of T2-T5
Medial border of scapula

15

What is the nerve + arterial supply to rhomboid major?

Dorsal scapular nerve
Dorsal scapular artery

16

List the intrinsic muscles of the shoulder

Deltoid
Supraspinatus
Infraspinatus
Subscapularis
Teres minor

17

What is the origin + insertion of deltoid?

Acromion/lateral clavicle
Deltoid tuberosity of humerus

18

What is the nerve supply to deltoid?

Axillary nerve

19

Which movements does deltoid enable?

Shoulder: abduction, flexion, extension

20

What is the origin + insertion of supraspinatus?

Supraspinatus fossa of scapula
Greater tubercle of humerus

21

What is the nerve supply to supraspinatus?

Suprascapular nerve

22

Which movements does supraspinatus enable?

Arm: abduction

23

What is the origin + insertion of infraspinatus?

Infraspinatus fossa of scapula
Greater tubercle of humerus

24

What is the nerve supply to infraspinatus?

Suprascapular nerve

25

Which movements does infraspinatus enable?

Arm: external rotation

26

What is the origin + insertion of subscapularis?

Subscapular fossa of scapula
Lesser tubercle of humerus

27

What is the nerve supply to subscapularis?

Subscapular nerve

28

Which movements does subscapularis enable?

Arm: internal rotation

29

What is the origin + insertion of teres minor?

Lateral border of scapula
Greater tubercle of humerus

30

What is the nerve supply to teres minor?

Axillary nerve