Introduction to the Upper Limb

Question 1

Acromion

Answer 1

(Acropolis of Athens)

Question 2

Greater and Lesser Tubercles of the humerus

Answer 2

Question 3

Coracoid Process

Answer 3

Question 4

Which finger is referred to as medial - Pinkie or Thumb

Answer 4

Pinkie

Question 5

Medial and Lateral Epicondyles

Answer 5

Question 6

Anatomical Snuff Box and Boundaries

Answer 6

Lateral Side - Tendons of Extensor Pollicis Brevis + Abductor Pollicis Longus

Medial Side - Tendon of Extensor Pollicis Longus

Proximal Side - Radial Styloid Process

Floor - Carpal Bones (Scaphoid & Trapezium)

Question 7

What structures does the musculocutaneous nerve run through

Answer 7

Superficial to the brachialis but deep to the biceps brachii (innervates both)

Question 8

Flexors of the Arm

Answer 8

BBC
Biceps Brachii
Brachialis
Coracobrachialis

Question 9

Cubital Fossa Region

Answer 9

Question 10

Boundaries of Cubital Fossa

Answer 10

Superior/Base - Imaginary Line between Medial and Lateral Epicondyles
Medial - Lateral boundary of pronator teres
Lateral - Medial border of brachioradialis

Question 11

Key Contents of Cubital Fossa

Answer 11

Radial Artery
Brachial Artery
Ulnar Artery

Median Nerve
Radial Nerve

Biceps Tendon

Question 12

What are the five superficial flexor muscles of the forearm

Answer 12

(Include Flexor Digitorum Superficialis in bottom right ***IT IS LESS SUPERFICIAL THAN THE OTHER MUSCLES)

Question 13

Where do forearm flexor muscles originate

Answer 13

Medial Epicondyle of the humerus

Question 14

Superficial Flexors of the fingers

Answer 14

Question 15

Origins of biceps brachii heads

Answer 15

Short Head - Apex of Coracoid Process on Scapula

Long Head - Supraglenoid tubercle of scapula

Question 16

Pronation vs Supination of the wrist

Answer 16

Remember ‘sup’ination like holding soup

Question 17

Discuss whether each of the flexors of the arm are more effective when the wrist is pronated vs supinated

Answer 17

Biceps Brachii - More effective when pronated (because it is fully stretched)
Brachialis - Equally Effective
Coracobrachialis - Equally Effective

Question 18

Heads of the tricep

Answer 18

Question 19

Origins of each head of the triceps

Answer 19

Long Head - Infraglenoid tubercle of the scapula
Medial Head - Posterior surface of the humerus (inferior to radial groove)
Lateral Head - Posterior surface of humerus (superior to radial groove)

Question 20

Insertion point of triceps

Answer 20

Olecranon of ulna and fascia of forearm

Question 21

Where do the extensor muscles of the forearm originate

Answer 21

Lateral Epicondyle

Question 22

Superficial Forearm Extensor - 1

Answer 22

Question 23

Superficial Forearm Extensor - 2

Answer 23

Question 24

Superficial Forearm Extensor - 3

Answer 24

Question 25

Superficial Forearm Extensor - 4

Answer 25

Question 26

Superficial Forearm Extensor - 5

Answer 26

Question 27

Superficial Forearm Extensor - 6

Answer 27

Question 28

Superficial Forearm Extensor - 7

Answer 28

Question 29

Superficial Forearm Extensor - 8

Answer 29

Question 30

Superficial Forearm Extensor - 9

Answer 30

Question 31

Superficial Forearm Extensor - 10

Answer 31

Question 32

What muscle abducts/adducts the thumb

Answer 32

Abductor Pollicis Longus/Brevis

Adductor Pollicis

Question 33

What muscle extends the index finger

Answer 33

Extensor Indicis Muscle

Question 34

Deep Forearm Extensor - 11

Answer 34

Question 35

Deep Forearm Extensor - 12

Answer 35

Question 36

Deep Forearm Extensor - 13

Answer 36

Question 37

Deep Forearm Extensor - 14

Answer 37

Question 38

Deep Forearm Extensor - 15

Answer 38