UL Origin, Insertions, and Innervations 1

Question 1

Rhomboid minor - Origin

Answer 1

C7-T1 spinous processes

Question 2

Rhomboid minor - Insertion

Answer 2

Root of spine of scapula

Question 3

Rhomboid minor - Innervation

Answer 3

Dorsal scapular nerve

Question 4

Rhomboid major - Origin

Answer 4

T2-T5 spinous processes

Question 5

Rhomboid major - Insertion

Answer 5

Medial border of scapula (between root of spine and inferior angle)

Question 6

Rhomboid major - Innervation

Answer 6

Dorsal scapular nerve

Question 7

Latissimus dorsi - Origin

Answer 7

Thoracolumbar fascia, T7-T12 spinous processes

Question 8

Latissimus dorsi - Insertion

Answer 8

Intertubercular sulcus of humerus

Question 9

Latissimus dorsi - Innervation

Answer 9

Thoracodorsal nerve

Question 10

Subscapularis - Origin

Answer 10

Subscapular fossa of scapula

Question 11

Subscapularis - Insertion

Answer 11

Lesser tubercle of humerus

Question 12

Subscapularis - Innervation

Answer 12

Upper and lower subscapular nerves

Question 13

Infraspinatus - Origin

Answer 13

Infraspinous fossa of scapula

Question 14

Infraspinatus - Insertion

Answer 14

Greater tubercle of humerus

Question 15

Infraspinatus - Innervation

Answer 15

Suprascapular nerve

Question 16

Teres minor - Origin

Answer 16

Lateral border of scapular

Question 17

Teres minor - Insertion

Answer 17

Greater tubercle of humerus

Question 18

Teres minor - Innervation

Answer 18

Axillary nerve

Question 19

Pectoralis minor - Origin

Answer 19

Anterior surface of costal cartilages of ribs 3-5

Question 20

Pectoralis minor - Insertion

Answer 20

Coracoid process of scapula

Question 21

Pectoralis minor - Innervation

Answer 21

Medial and lateral pectoral nerves

Question 22

Pectoralis major - Origin

Answer 22

Clavicular head - anterior surface of medial half of clavicle
Sternal head - anterior sternum, anterior surface of costal cartilages of ribs 1-6

Question 23

Pectoralis major - Insertion

Answer 23

Lateral lip of intertubercular sulcus of humerus

Question 24

Pectoralis major - Innervation

Answer 24

Medial and lateral pectoral nerves

Question 25

Anterior deltoid - Origin

Answer 25

Lateral third of clavicle

Question 26

Anterior deltoid - Insertion

Answer 26

Deltoid tuberosity of humerus

Question 27

Anterior deltoid - Innervation

Answer 27

Axillary nerve

Question 28

Middle deltoid - Origin

Answer 28

Acromion

Question 29

Middle deltoid - Insertion

Answer 29

Deltoid tuberosity of humerus

Question 30

Middle deltoid - Innervation

Answer 30

Axillary nerve

Question 31

Posterior deltoid - Origin

Answer 31

Spine of scapula

Question 32

Posterior deltoid - Insertion

Answer 32

Deltoid tuberosity of humerus

Question 33

Posterior deltoid - Innervation

Answer 33

Axillary nerve

Question 34

Teres major - Origin

Answer 34

Inferior angle and inferior lateral border of the scapula

Question 35

Teres major - Insertion

Answer 35

Medial lip of intertubercular sulcus

Question 36

Teres major - Innervation

Answer 36

Lower subscapular nerve

Question 37

Supraspinatus - Origin

Answer 37

Supraspinous fossa of scapula

Question 38

Supraspinatus - Insertion

Answer 38

Greater tubercle of humerus

Question 39

Supraspinatus - Innervation

Answer 39

Suprascapular nerve

Question 40

Biceps brachii - Origin

Answer 40

Long head - supraglenoid tubercle of scapula | Short head - coracoid process of scapula

Question 41

Biceps brachii - Insertion

Answer 41

Radial tuberosity of radius

Question 42

Biceps brachii - Innervation

Answer 42

Musculocutaneous nerve

Question 43

Brachialis - Origin

Answer 43

Distal half of anterior humerus

Question 44

Brachialis - Insertion

Answer 44

Coronoid process of ulna, tuberosity of ulna

Question 45

Brachialis - Innervation

Answer 45

Musculocutaneous nerve

Question 46

Brachioradialis - Origin

Answer 46

Lateral supracondylar ridge of humerus

Question 47

Brachioradialis - Insertion

Answer 47

Proximal to styloid process of radius

Question 48

Brachioradialis - Innervation

Answer 48

Radial nerve

Question 49

Triceps brachii - Origin

Answer 49

Long head - infraglenoid tubercle of scapula Medial head - posterior humerus (inferior to radial groove) Lateral head - posterior humerus (superior to radial groove)

Question 50

Triceps brachii - Insertion

Answer 50

Olecranon of ulna

Question 51

Triceps brachii - Innervation

Answer 51

Radial nerve

Question 52

Anconeus - Origin

Answer 52

Lateral epicondyle of humerus

Question 53

Anconeus - Insertion

Answer 53

Olecranon of ulna

Question 54

Anconeus - Innervation

Answer 54

Radial nerve