MSK (upper limb)

Question 1

What is the innervation of pectoralis major?

Answer 1

Medial and lateral pectoral nerves

Question 2

What is the innervation of pectoralis minor?

Answer 2

Medial pectoral nerve

Question 3

What is the innervation of serratus anterior?

Answer 3

Long thoracic nerve

Question 4

Name the 3 anterior axio-appendicular muscles

Answer 4

Pectoralis major
Pectoralis minor
Serratus anterior

Question 5

What is the innervation of trapezius?

Answer 5

CNXI

Question 6

What is the innervation of rhomboid minor?

Answer 6

Dorsal scapula nerve

Question 7

What is the innervation of latissimus dorsi?

Answer 7

Thoracodorsal nerve

Question 8

What is the innervation of rhomboid major?

Answer 8

Dorsal scapula nerve

Question 9

Name the 4 posterior axio-appendicular muscles?

Answer 9

Trapezius
Latissimus dorsi
Rhomboid minor
Rhomboid major

Question 10

What 1 muscles of the scapular region is associated with the upper limb?

Answer 10

Levator scapulae

Question 11

What are the 4 muscles of the rotator cuff?

Answer 11

Supraspinatus
Infraspinatus
Subscaluraris
Teres minor

Question 12

What are the attachments of the rotator cuff muscles?

Answer 12

Supraspinatus, infraspinatus and teres minor all to the greater tuberosity
Subscapularis to the lesser tuberosity

Question 13

What is the action of the rotator cuff?

Answer 13

Hold the humeral head in the glenoid fossa

Question 14

What are the innervation of the 4 rotator cuff muscles?

Answer 14

Supraspinatus suprascalupar nerve (C5-C6)
Infraspinatus suprascalupar nerve (C5-c6)
Teres minor axillary nerve (C5-C6)
Subscapularis lower subscapular nerve (C5-C7)

Question 15

Arm
Anterior compartment
Action? (2 + exception)

Answer 15

Flexion of arm and forearm

Biceps brachii also supinates the forearm

Question 16

Arm
Anterior compartment
Innervation?

Answer 16

Musculocutaneous nerve

Question 17

Arm
Posterior compartment
Action?

Answer 17

Extension of the arm and forearm

Question 18

Arm
Posterior compartment
Innervation?

Answer 18

Radial nerve

Question 19

Forearm
Anterior compartment
Superficial
Action? (3)

Answer 19

Flexion of the wrist and digits
Pronation
Abduction-adduction of the wrist

Question 20

Forearm
Anterior compartment
Superficial
Innervation?

Answer 20

Median nerve

Carpi ulnaris by ulnar nerve

Question 21

Forearm
Anterior compartment
Intermediate
Action?

Answer 21

Flexion of the digits at the PIP

Question 22

Forearm
Anterior compartment
Intermediate
Innervation?

Answer 22

Median nerve

Question 23

Forearm
Anterior compartment
Deep
Action?

Answer 23

Flexion of the digits at the DIP

Pronator quadratus does pronation

Question 24

Forearm
Anterior compartment
Deep
Innervation?

Answer 24

Medial nerve

Medial half of flexor digitorum profundus by ulnar nerve

Question 25

Forearm Posterior compartment Superficial Action? (3)

Answer 25

Extension of the wrist and digits Supination Abduction and adduction of the wrist

Question 26

Forearm Posterior compartment Superfical Innervation?

Answer 26

Radial nerve

Question 27

Forearm Posterior compartment Deep Action? (3)

Answer 27

Extension of the wrist and digits Supination Abduction and adduction of the wrist

Question 28

Forearm Posterior compartment Deep Innervation?

Answer 28

Radial nerve

Question 29

What innervates the thenar eminence?

Answer 29

Recurrent branch of the median nerve

Question 30

What innervated the hypothenar eminence?

Answer 30

Deep branch of the ulnar nerve

Question 31

What are the intrinsic muscles of the hand?

Answer 31

4 lumbricals Palmar interossei Dorsal interossei

Question 32

What is the innervation to the lumbricals?

Answer 32

Median nerve for lateral 2 | Ulnar nerve for medial 2

Question 33

What is the innervation of the interossei muscles?

Answer 33

Ulnar nerve

Question 34

What is the action of the interossei muscles?

Answer 34

Dorsal, abduction of the digits | Palmar, adduction of the digits