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MSK lectures > Anatomy of the upper limb 10/10/18 > Flashcards

Anatomy of the upper limb 10/10/18 Flashcards

1
Q

What type of joints are the finger joints?

A

Hinge

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2
Q

What type of joint is the 1st MCP joint?

A

Saddle Joint

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3
Q

What 2 muscles are innervated by the spinal accessory nerve?

A

Trapezius

Sternocleidomastoid

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4
Q

What nerve innervates the Rhomboid minor and major?

A

Dorsal scapula nerve

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5
Q

What nerve supplies the serratus anterior muscle?

A

Long thoracic nerve

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6
Q

What nerve supplies the levator scapulae?

A

Dorsal scapula nerve

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7
Q

What is the function of the rotator cuff?

A

Keeps the humoural head in the glenoid fossa

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8
Q

What are the 4 rotator cuff muscles?

A

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

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9
Q

What three rotator cuff muscles attach to the greater tuberosity?

A

Supraspinatus
Infraspinatus
Teres minor

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10
Q

Which rotator cuff muscle attaches to the lesser tuberosity?

A

Subscapularis

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11
Q

What muscle is responsible for the first 15 degrees of abduction?

A

Supraspinatus

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12
Q

Which rotator cuff is most likely to tear?

A

Supraspinatus

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13
Q

How much of the humeral head is present in the glenoid fossa at any time?

A

1/3rd

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14
Q

How many compartments in the arm?

A

2
Anterior
Posterior

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15
Q

What are the three muscles in the anterior compartment of the arm?

A

Biceps brachii
Brachialis
Coracobrachialis

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16
Q

What innervates the anterior compartment of the arm?

A

Musculocutaneous nerve

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17
Q

What is in the posterior compartment of the arm?

A

Triceps brachii

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18
Q

What innervates the posterior compartment of the arm?

A

Radial nerve

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19
Q

How many layers of the anterior compartment of the forearm?

A

3

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20
Q

What is in the superficial layer of the anterior compartment of the forearm?

A

Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris

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21
Q

What muscle is in the intermediate layer in the anterior compartment of the arm?

A

Flexor digitorum superficialis

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22
Q

What is in the deep layer of the anterior compartment of the forearm?

A

Flexor pollicis longus
Flexor digitorum profundus
Pronator quadratus

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23
Q

What supplies the anterior compartment of the forearm?

A

Median nerve

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24
Q

What supplies flexor carpi ulnaris and flexor digitorum superficialis?

A

Ulnar nerve

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25
Q

How many layers are in the posterior compartment of the forearm?

A

2
superficial
Deep

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26
Q

What muscles are in the superficial posterior compartment of the forearm?

A 
Brachioradialis
Extensor carpi radialis longus
Extensor carpi radialis brevis
Anconeus
Extensor digitorum
Extensor carpi ulnaris
Extensor digiti minimi
27
Q

What muscles are in the deep posterior compartment of the forearm?

A

Supinator
Abductor pollicis longus
Extensor pollicis longus
Extensor indicis

28
Q

What innervates the posterior compartment of the forearm?

A

Radial nerve

29
Q

What is in the thenar eminence of the hand?

A

Abductor pollicis brevis
Flexor pollicis brevis
Opponenes pollicis

30
Q

What innervates the thenar eminence?

A

Recurrent branch of the median nerve

31
Q

What is in the hypothenar eminence?

A

Abductor digiti minimi
Flexor digiti minimi brevis
Opponens digiti minimi

32
Q

What innervates the hypothenar eminence?

A

Deep branch of ulnar nerve

33
Q

How many lumbricals are there?

A

4

34
Q

How many types of interossei are there?

A

2
DAB
PAD

35
Q

What is responsible for most of the hand movements?

A

Ulnar nerve

36
Q

Where does the brachial plexus originate from?

A

C5-T1

37
Q

What does the brachial plexus supply?

A

The whole forearm

38
Q

How does the brachial plexus travel?

A

Through axilla to the medial arm

Travels around the brachial artery

39
Q

From proximal to distal what are the components of the brachial plexus?

A 
Roots
Trunks
Divisions
Cords
Nerves
40
Q

What nerves does the brachial plexus become?

A 
Musculo-cutaneous
Axillary
Radial
Median
Ulnar
41
Q

What is the carpal tunnel formed by?

A

Flexor retinaculum

Carapal

42
Q

What are the contents of the carpal tunnel?

A

Flexor digitorum superficialis x4
Flexor digitorum profundus x4
Flexor pollicis longus
Median nerve

43
Q

What is carpal tunnel syndrome and what causes it?

A

Compression of the median nerve
Weakness of the thenar muscles
Numbness in digits 1-3 and half of digit 4

44
Q

If it is carpal tunnel syndrome where will a patch of sensation be present?

A

Small patch in the lower centre of palm

45
Q

Where do the arteries of the arm anastamose?

A

Elbow
Scapular anastomosis
Superficial and deep palmar arch

46
Q

What arteries are dominant in the superficial and deep palmar arches?

A

Superficial - Ulnar

Deep - Radial

47
Q

What arteries anastamose in the scapular anastamosis?

A

Suprascapular artery
Doral scapular artery
Circumflex scapular artery

48
Q

What are the joints of the upper limb?

A 
Sternoclavicular joint
Acromoclavicular joint
Glenohumeral joint
Elbow joint - Humeroulnar joint, radiohumeral joint
Proximal radioulnar joint
Distal radiounlar joint
Radiocarpal joint
49
Q

What kind of joint is the Acromoclavicular joint?

A

Plane joint

50
Q

What kind of joint is the Glemohumeral joint?

A

Ball and socket

51
Q

What kind of joint is the Sternoclavicular joint?

A

Saddle

52
Q

What kind of joint is the elbow joint?

A

Hinge

53
Q

What kind of joint are the Proximal and distal radioulnar joint?

A

Pivot

54
Q

What kind of joint is the Radiocarpal joint?

A

Ellipsoid

55
Q

Does the radius or ulnar cross over during pronation?

A

Radius

56
Q

What are the axioappendicular muscles?

A 
Trapezius
Serratus anterior
Rhomboid minor and major
Subclavius
Latissimus dorsi
Levator scapulae
57
Q

What muscles are in the scapulae region?

A

Levator scapulae

Rotator cuff

58
Q

What is the function of the anterior compartment of the arm?

A

Felxion of arm and forearm

Supinates forearm

59
Q

What is the function of the posterior compartment of the arm?

A

Extension of arm and forearm

60
Q

What is the action of the anterior compartment of the forearm?

A

Flexion of wrist and digits
Pronation
Abduction and adduction of wrists

61
Q

What is the function of the posterior compartment of the forearm?

A

Extension of the wrist and digits
Supination
Abduction
Adduction

62
Q

Which eminence is affected by carpal tunnel syndrome?

A

Thenar eminence

63
Q

What is the function of the dorsal interossei?

A

Abduction of digits

64
Q

What is the function of the palmar interossei?

A

Adduction of digits

MSK lectures (50 decks)

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