Anatomy of UL: Proximal to Elbow

Question 1

Teres Minor

Attachments

Answer 1

• O: Scapula (Lateral Border)
• I: Humerus (Greater Tubercle)

Question 2

Teres Minor

Innervation

Answer 2

Axillary Nerve

Question 3

Teres Minor

Action

Answer 3

External Rotation of Shoulder

weak adduction

Question 4

Teres Major

Attachments

Answer 4

• O: Scapula (Inf. Angle)
• I: Humerus (Lesser Tubercle)

Question 5

Teres Major

Action

Answer 5

Adduction and Internal Rotation of the GH joint

Question 6

Teres Minor

Attachments

Answer 6

• O: Scapula (Lateral Border)
• I: Humerus (Greater Tubercle)

Question 7

Subscapularis

Attachments

Answer 7

• O: Scapula (Subscapular Nerve)
• I: Humerus (Lesser Tubercle)

Question 8

Subscapularis

Action

Answer 8

Stabilization; Internal Rotation of Arm

Question 9

Subscapularis

Innervation

Answer 9

Upper & Lower Subscapular Nerve

Question 10

Supraspinatus

Attachments

Answer 10

• O: Scapula (Supraspinous Fossa)
• I: Humerus (Greater Tubercle)

Question 11

Supraspinatus

Action

Answer 11

Shoulder Abduction

Question 12

Supraspinatus

Innervation

Answer 12

Suprascapular Nerve

Question 13

Infraspinatus

Attachments

Answer 13

• O: Scapula (Infraspinatus Fossa)
• I: Humerus (Greater Tubercle)

Question 14

Infraspinatus

Action

Answer 14

Shoulder External Rotation

Question 15

Infraspinatus

Innervation

Answer 15

Suprascapular Nerve

Question 16

Triceps Brachii - Long Head

Attachment

Answer 16

• O: Scapula (Infraglenoid Tubercle)
• I: Ulna (Olecranon)

Question 17

Triceps Brachii - Long Head

Action

Answer 17

• Elbow Extension
• Shoulder Adduction and External Rotation

Question 18

Triceps Brachii - Long Head

Innervation

Answer 18

Radial Nerve

Question 19

Triceps Brachii - Lateral Head

Attachment

Answer 19

• O: Humerus (posterior surface)
• I: Ulna (Olecranon)

Question 20

Triceps Brachii - Lateral Head

Action

Answer 20

• Elbow Extension
• Shoulder Adduction and External Rotation

Question 21

Triceps Brachii - Lateral Head

Innervation

Answer 21

Radial Nerve

Question 22

Anconeus

Attachments

Answer 22

• O: Humerus (Lat. Epicondyle)
• I: Ulna (Olecranon)

Question 23

Anconeus

Action

Answer 23

Elbow Extension; tightens joint capsule

Question 24

Anconeus

Innervation

Answer 24

Radial Nerve

Question 25

Brachialis | Attachments

Answer 25

* O: Humerus (Distal 1/2 of anterior surface) * I: Ulna (Ulnar Tuberosity) | *Located Deep to Biceps*

Question 26

Brachialis | Action

Answer 26

Elbow Flexion

Question 27

Brachialis | Innervation

Answer 27

Musculocutaneous and Radial Nerves

Question 28

Coracobrachialis | Attachments

Answer 28

* O: Scapula (Coracoid Process) * I: Humerus (Middle 1/3)

Question 29

Coracobrachialis | Action

Answer 29

Shoulder Adduction and Flexion

Question 30

Coracobrachialis | Innervation

Answer 30

Musculocutaneous

Question 31

Biceps Brachii - Short Head | Attachments

Answer 31

* O: Scapula (Coracoid Process) * I: Radius (radial tuberosity and the fascia)

Question 32

Biceps Brachii - Short Head | Action

Answer 32

Elbow Flexion; Supination

Question 33

Biceps Brachii - Short Head | Innervation

Answer 33

Musculocutaneus Nerve

Question 34

Biceps Brachii - Long Head | Attachments

Answer 34

* O: Scapula (Supraglenoid Tubercle) * I: Radius (radial tuberosity and the fascia)

Question 35

Biceps Brachii - Long Head | Attachments

Answer 35

Elbow Flexion; Supination | Assists in Shoulder stability (Flex, Abd., & IR)

Question 36

Biceps Brachii - Long Head | Innervation

Answer 36

Musculocutaneus Nerve

Question 37

Brachioradialis | Attachment

Answer 37

* O: Humerus (Lateral/Distal surface) * I: Radius (Styloid Process)

Question 38

Brachioradialis | Action

Answer 38

Elbow Flexion; Pronation

Question 39

Brachioradialis | Innervation

Answer 39

Radial Nerve

Question 40

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