Upper Limb

Question 1

What happens to the radius and ulna during pronation?

Answer 1

Radius wil cross over ulna

Question 2

What are the axio-appendicular muscles?

Answer 2

Trapezius, serratus anterior, rhomboid min and maj, subclavius, lattisimus dorsi and levator scapulae

Question 3

What innervates the trapezius?

Answer 3

Spinal accessory nerve

Question 4

What innervates the serratus anterior?

Answer 4

Long thoracic nerve

Question 5

What innervates the rhomboid maj and min?

Answer 5

Dorsal scapular nerve

Question 6

What innervates the levator scapulae?

Answer 6

Dorsal scapular nerve

Question 7

What are the 4 rotator cuff muscles?

Answer 7

SITS
Suprapsinous
Infraspinous
Teres minor
Subscapularis

Question 8

Which of the rotator cuff muslces attach at the greater tuberosity?

Answer 8

Supraspinous, infraspinous, teres minor

Question 9

Which of the rotator cuff muscles attach at the lesser tuberosity?

Answer 9

Subscapularis

Question 10

What muscles make up the anterior compartment of the arm?

Answer 10

Biceps brachii
Brachialis
Coracobrachialis

Question 11

What innervates the muscles of the anterior compartment of the arm?

Answer 11

Musculocutanous nerve (lateral cord)

Question 12

What is the action of the muscles in the anterior compartment of the arm?

Answer 12

Flexion of arm and forearm

Question 13

What extra function can the biceps brachii do?

Answer 13

Supinates forearm

Question 14

What muscle makes up the posterior compartment of the arm?

Answer 14

Triceps brachii

Question 15

What innervates the triceps brachii?

Answer 15

Radial nerve

Question 16

What is the action of the triceps brachii?

Answer 16

Extension of arm and forearm

Question 17

What muscles make up the superficial layer of the anteior compartment of the forearm?

Answer 17

Pronator teres
Flexor carpi radialis
Flexor carpi ulnaris
Palmaris longus

Question 18

What muscles make up the intermediate layer of the anteior compartment of the forearm?

Answer 18

Flexor digitorum superficialis

Question 19

What muscles make up the deep layer of the anteior compartment of the forearm?

Answer 19

Flexor pollicus longus
Flexor digitorum profundus
Pronator quadratus

Question 20

What innervates the anterior compartment of the forearm?

Answer 20

Median nerve

Question 21

What are the 2 muscles that are the exception in terms of innervation in the anterior forearm?

Answer 21

Flexor carpi ulnaris and medial half of flexor digitorum profundus

Question 22

What are the actions of the anterior compartment of the forearm?`

Answer 22

Flexion of wrist and digits
Pronation
Adduction and abduction of wrist

Question 23

What muscles make up the superficial layer of the posterior compartment of the forearm?

Answer 23

Brachioradialis
Anconeus
Extensor carpi radialis longus
Extensor digitorum
Extensor carpi ulnars
Extensor digiti minimi
Extensor carpi radialis brevis

Question 24

What innervates the superficial layer of the posterior compartment of the forearm?

Answer 24

Radial nerve

Question 25

What are the actions of the posterior compartment of the forearm?

Answer 25

Extension of wrist and digits | Supination, adduction and abduction of wrist

Question 26

What muscles make up the deep layer of the posterior compartment of the forearm?

Answer 26

``` Supinator Abductor pollicis longus Extensor pollicis longus Extensor pollicis brevis Extensor indicis ```

Question 27

What innervates the deep layer of the posterior compartment of the forearm?

Answer 27

Radial nerve

Question 28

What muscles make up the thenar eminence of the thumb?

Answer 28

Abductor pollicis brevis Flexor pollicis brevis Opponens pollicis

Question 29

What innervates the thenar eminence of the thumb?

Answer 29

Recurrent branch of the median nerve

Question 30

What muscles make up the hypothenar eminence of the hand?

Answer 30

Abductor digiti minimi Flexor digiti minimi brevis Opponens digiti minimi

Question 31

What innervates the hypothenar eminence of the hand?

Answer 31

Deep branch of the ulnar nerve

Question 32

Where do the lumbricals of the hand attach?

Answer 32

Tendons of flexor digitotrum profundus

Question 33

What innervates the lumbricals of the hand?

Answer 33

Laterally - median nerve | Medially - ulnar nerve

Question 34

What is the action of the dorsal interossei?

Answer 34

Abduction of digits | DAB

Question 35

What is the action of the palmar interossei?

Answer 35

Adduction of digits | PAD

Question 36

What innervates the inerossei muscles?

Answer 36

Ulnar nerve

Question 37

Where in the spinal cord does the brachial plexus arise?

Answer 37

Anterior rami of C5-T1

Question 38

What trunk arises from C5/6?

Answer 38

Superior trunk

Question 39

What trunk arises from C7?

Answer 39

Middle trunk

Question 40

What trunk arises from C8/ T1?

Answer 40

Inferior trunk

Question 41

What makes up the lateral cord?

Answer 41

Anteiror divisions from superior and middle trunks

Question 42

What makes up the posterior cord?

Answer 42

Posterior divisions from the superior, middle and inferior trunks

Question 43

What makes up the medial cord?

Answer 43

Anterior division from inferior trunk

Question 44

From what cord does the musculo-cutanoeus nerve arise from?

Answer 44

Lateral cord

Question 45

From what cord does the axillary nerve arise from?

Answer 45

Posterior cord

Question 46

From what cord does the radial nerve arise from?

Answer 46

Posterior cord

Question 47

From what cord does the ulnar nerve arise from?

Answer 47

Medial cord

Question 48

From what cord does the median nerve arise from?

Answer 48

Lateral and medial cord

Question 49

What dermatome supplies the thumb?

Answer 49

C6

Question 50

What dermatome supplies the little finger and half of the ring finer?

Answer 50

C8

Question 51

What dermatome supplies the middle finger, half the index and ring finger?

Answer 51

C7

Question 52

What forms the carpal tunel?

Answer 52

Flexor retinaculum | Carpals

Question 53

What are the contents of the carpal tunnel?

Answer 53

Flexor digitorum superficialis (x4) Flexor digitorum produndus (x4) Flexor pollicis longus Median nerve

Question 54

What is carpal tunnel syndrome?

Answer 54

Compression of median nerve causing weakness of thenar muscles and numbness in digits 1-3 and lateral half of digit 4