Upper limb 2

Question 1

Flat ligament between radius and ulna

Answer 1

interosseous membrane

Question 2

Tip of the elbow of ulna

Answer 2

Olecranon process

Question 3

Bones of the hand (3 types)

Answer 3

Carpus, Metacarpus, Phalanges

Question 4

Carpal bones in order (thumb to pinky)

Answer 4

Scaphoid, Lunate, Triquetral, Pisiform, Trapezium, Trapezoid, Capitate, Hamate

Question 5

Carpals that articulate with Radius

Answer 5

Scaphoid, Lunate

Question 6

Muscles on the humerus (anterior)

Answer 6

Pectoralis Major

Coracobrachialis,

Question 7

Muscles on the humerus (posterior)

Answer 7

Teres Major

Latissimus Dorsi

Question 8

5 muscles that cross shoulder joint

Answer 8

Deltoid

Question 9

Pectoralis Major

Answer 9

O: Clavicular head, Sternocostal head
I: intertubercular groove of humerus
A: Flexion, Adduction, Medial rotation
I: Lateral and Medial Pectoral nerves

Question 10

Synergist of Pectoralis Major

Answer 10

Coracobrachialis

Question 11

Coracobrachiails

Answer 11

O: Coracoid process of scapula
I: medial humerus
A: Flexion, Adduction, Medial rotation
I: Musculocutaneous nerve (C5-7)

Question 12

Teres Major

Answer 12

O: Inferior angle of scapula (posterior)
I: intertubercular groove of humerus
A: Extend, Adduct, medially rotate
I: lower subscapular nerve (C6-7)

Question 13

Latissimus Dorsi

Answer 13

O: spinous processes of T7-12, Thoraculumbar fascia, iliac crest, inferior 3-4 ribs
I: intertubercular groove of humerus
A: Extend, Adduct, Medially rotate shoulder
I: thoracodorsal nerve (C6-8)

Question 14

Synergist w Latissimus Dorsi

Answer 14

Teres Major

Question 15

Deltoid - anterior fibre

Answer 15

O: Lateral clavicle
I: deltoid tuberosity
A: flexion, medial rotation
I: axillary nerve

Question 16

Deltoid - medial fibre

Answer 16

O: Acromium
I: deltoid tuberosity
A: Abduction
I: axillary nerve

Question 17

Deltoid - posterior fibre

Answer 17

O: spine of scapula
I: deltoid tuberosity
A: Extension, lateral rotation
I: axillary nerve

Question 18

Axillary nerve palsy

Answer 18

Innervation of deltoid and teres minor compromised
atrophy and loss of function
loss of cutaneous sensation

Question 19

Compartments of the limbs

Answer 19

Dense fibrous tissue divide the muscles of the limbs into compartments

Question 20

Compartment syndrome

Answer 20

abnormal elevation of interstitial pressure in compartment resulting in microvascular compromise

Question 21

Anterior muscles of the Arm

Answer 21

Biceps brachii

Brachialis

Question 22

Posterior muscles of the Arm

Answer 22

Triceps brachii

Question 23

Biceps brachii

Answer 23

O: Short head: coracoid process Long head: supraglenoid tubercle (both scapula)
I: Tuberosity of radius and bicipital aponeurosis
A: flexion, supination
I: Musculocutaneous nerve (C5,C6)

Question 24

Brachialis

Answer 24

*only crosses elbow joint
O: distal anterior surface of humerus
I: Coronoid process of ulna
A: Flexion of forearm
I: Musculocutaneous nerve + Radial nerve

Question 25

Triceps brachii

Answer 25

Origin:
Long head: infraglenoid tubercle (scapula)
Medial head: posterior humerus (below)
Lateral head: posterior humerus (above)
I: Olecranon process, forearm fascia
A: Extension
I: Radial nerve (C6-8)

Question 26

Triceps reflex Absence

Answer 26

spondolysis, myopathy, damage to C7-8, poliomyelitis

Question 27

Musculocutaneous Nerve

Answer 27

Arm: Anterior Muscles
Forearm: Cutaneous sensory

Question 28

Median Nerve

Answer 28

Forearm: Anterior Muscles
Hand: 3 lateral thenars 2 lateral lumbricles

Question 29

Ulnar Nerve

Answer 29

Forearm: Flexor Carpi Ulnaris + 1/2 Flexor digitorum profundus
Hand: all remaining intrinsic muscles

Question 30

Radial Nerve

Answer 30

Arm: Posterior muscles + Brachioradialis
Forearm: Posterior muscles
Hand: Cutaneous sensory