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2nd Year - Anatomy > Upper Limb 1 (continued) > Flashcards

Upper Limb 1 (continued) Flashcards

1
Q

What is 6

A

Tendon of Biceps brachii muscle

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2
Q

Injury to the musculocutaneous nerve from a weapon such as a knife would result in what?

A

Paralysis of biceps bracii, coracobrachialis and brachialis Loss of sensation on the lateral aspect of forearm

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3
Q

What muscles does the ulnar nerve supply?

A

Flexor carpi ulnaris

Ulnar half of flexor digitorum profundus

Most intrinsic muscles of hand

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4
Q

What are the 3 important muscles of the anterior arm? What nerve supplies these muscles?

A

Biceps bracii

Coracobrachialis

Brachialis

Musculocutaneous nerve

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5
Q

What is the main action of the brachialis on the elbow joint?

A

Flexes elbow in all positions

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6
Q

What makes up the borders of the cubital fossa?

A

Base -> imagery line between two epicondyles

Medial border -> pronator teres muscle

Lateral border -> brachioradialis muscle

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7
Q

What is 17

A

Ulnar artery

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8
Q

What is the origin and insertion of the brachialis?

A

Arises from the front of the distal half of the shaft of the humerus Inserted into coronoid process of ulna

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9
Q

What are the 3 common sites of humerus where 3 nerves could be damaged due to fracture?

A

Radial nerve -> radial groove

Ulnar nerve -> medial epicondyle

Axillary nerve -> surgical neck

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10
Q

What 3 joints does the biceps bracii act on?

A

Shoulder Elbow Radio-ulnar joints

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11
Q

What is the characteristic clinical sign of radial nerve injury?

A

Wrist drop

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12
Q

What is E

A

Biceps Brachii short head

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13
Q

What is 19

A

Ulnar reccurant artery

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14
Q

Where is the best place to compress the brachial artery to control haemorrhage?

A

Middle of the arm/ middle third

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15
Q

What two muscles arise from the coracoid process?

A

Short head of the biceps bracii

Coracobrachialis

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16
Q

What is 20

A

Anterior interosseous artery

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17
Q

What is A

A

Brchial plexus lateral cord

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18
Q

What is B

A

Brachialis

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19
Q

What is 24

A

Flexor digitorum superficialis

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20
Q

What is the nerve supply to triceps and anconeus muscle?

A

Radial nerve

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21
Q

What is 15

A

Medial epicondyle of humerus

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22
Q

What is 14

A

Median nerve

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23
Q

What is the action of the biceps bracii at each of its joints?

A

Flexes shoulder and elbow joint Supination of the radio-ulnar joint

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24
Q

What is 7

A

Radial recurrant artery

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25
Q

What is 18

A

Ulnar head of pronator teres muscle

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26
Q

What is 22

A

Tendinous arch of flecor digitorum superficialis muscle

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27
Q

What is the segmental or root value of the musculocutaneous nerve?

A

C5-C7

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28
Q

What is the nerve supply of the coracobrachialis?

A

Musculocutaneous nerve

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29
Q

Which segmental fibres mainly innervate biceps bracii?

A

C5 and C6

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30
Q

What is the cubital fossa?

A

Triangular depression or a hollow in front of the elbow Corresponds to the popliteal fossa at the back of the knee

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31
Q

What are the extensors of the elbow joint?

A

Triceps bracii Anconeus

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32
Q

What is D

A

Biceps Brachii, Long Head

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33
Q

What is the route of the radial nerve once it arises?

A

Enters the arm anterior to the long head of triceps and runs along with the profunda femoris artery (deep artery of the arm)

It curves around the midshaft region of the humerus in the radial groove

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34
Q

The fibrous layer of the joint capsule of the elbow joint is thickened on the medial and lateral aspect of the joint to form strong bands called what? Is this the same with the anterior and posterior aspects? Why?

A

Collateral ligament

Capsule is loose both on the anterior and posterior aspect of the joint to allow movement

35
Q

What is 4

A

Superficial branch of radial nerve

36
Q

Describe the route of the median nerve in the arm once it is formed

A

Descends along the lateral side of axillary artery and upper part of brachial artery. At the middle part of the arm the nerve crosses to the medial side of brachial artery and enters the cubital fossa. Gives no branches in the axilla or the upper arm

37
Q

What is the most powerful supinator of the forearm?

A

Biceps bracii

38
Q

What muscle does the musculocutaneous nerve perforate to enter the arm?

A

Coracobracialis

39
Q

Between which two muscles does the musculocutaneous nerve descend between?

A

Biceps bracii Brachialis

40
Q

What is F

A

Musculoskeletal nerve

41
Q

What is 2

A

Brachilais muscle

42
Q

What is 9

A

Insertion of prontator teres muscle

43
Q

pain from leaning on elbow at desk all day is known as what

A

Students elbow Students sitting at desk all day

Friction subcutaneous olecranon bursitis

44
Q

List some of the contents of the cubital fossa

A

Bifurcation of the brachial artery

Deep accompanying veins

Biceps bracii tendon

Median nerve

Radial nerve dividing into superficial and deep branches

45
Q

What is 10

A

Radial artery

46
Q

What is 23

A

Anterior interosseus artery

47
Q

What is 13

A

Brachial artery

48
Q

Where does the brachial artery start and end?

A

Direct continuation of the axillary artery which begins at the lower border of teres major muscle and ends in the cubital fossa close to the neck of the radius dividing into radial and ulnar arteries

49
Q

What is 8

A

Suppinator muscle

50
Q

What is the origin and insertion of the coracobrachialis?

A

Tip of the coracoid process Medial margin of the humerus about its middle

51
Q

What groove does the long head of the biceps bracii run in after arising from the supraglenoid tubercle?

A

Bicipital groove

52
Q

What is the main action of the triceps on the elbow joint?

A

Extension

53
Q

What are the flexors of the elbow joint?

A

Brachialis Biceps bracii Brachioradialis

54
Q

What is the deep artery of the arm called? Which artery gives it off as a branch?

A

Profunda brachii

Main branch given off by the brachial artery in the arm

55
Q

What are the muscles involved in pronation at the radio-ulnar joints?

A

Main

Pronator teres

Pronator quadratus

Other muscles assisting:

Flexor carpi radialis

Palmaris longus

Brachioradialis

56
Q

From which cord of the brachial plexus is the musculocutaneous nerve a branch of?

A

Lateral cord

57
Q

The median nerve arises in the axilla by two roots from the brachial plexus. What are these?

A

One from medial cord and one from the lateral cord of the brachial plexus

58
Q

What is the segmental (root value) of the radial nerve?

A

C5-T1

59
Q

What type of synovial joint is the elbow joint?

A

Synovial hinge

60
Q

What is the action of the anconeus muscle on the elbow joint?

A

Assists triceps in extending elbow joint;

Stabilises elbow joint;

Abducts ulna during pronation

61
Q

What is 25

A

Flexor digitorum profundus muscle

62
Q

What does the radial nerve supply?

A

Extensor compartment of arm and forearm

Innervates all the extensor muscles of elbow and wrist joint

63
Q

What is the route of the ulnar nerve in the arm once it arises?

A

Descends along the medial side of brachial artery and then it enters the posterior compartment of arm through the medial intermuscular septum. It runs along the medial head of triceps and to the back of the medial epicondyle

64
Q

Which muscle is the most powerful pronator of the forearm?

A

Pronator teres

65
Q

What type of synovial joint are the radio-ulnar joints?

A

Pivot type synovial joints

66
Q

What nerve supplies the brachialis muscle?

A

Musculocutaneous nerve

67
Q

Which ligament holds the head of the radius?

A

Anular ligament

68
Q

What is 21

A

Tendinous arch of flexor digitorum superficialis muscle

69
Q

What is 1

A

Biceps Brachii muscle

70
Q

What is usually the vein of choice for intravenous injections?

A

Median cubital vein

71
Q

What is the action of the coracobrachialis on the shoulder joint?

A

Flexion and adduction

72
Q

What is 26

A

Flexor pollicis longus muscle

73
Q

What is 3

A

Brachioradialis muscle

74
Q

What are the muscles involved in supination at the radio-ulnar joints?

A

Main Supinator -

Biceps bracii

Other muscles assisting:

Extensor pollicis longus

Extensor carpi radialis longus

75
Q

After supplying the muscles of the arm what does the musculocutaneous nerve continue as?

A

Lateral cutaneous nerve of the forearm

76
Q

What does the median nerve supply?

A

Muscles in anterior compartment of forearm (apart from flexor carpi ulnaris and ulnar half of flexor digitorum profundus)

77
Q

What is 5

A

Deep Branch of radial nerve

78
Q

What is 12

A

Medial intermuscular seprum of arm and superior ulnar collateral artery

79
Q

What is 11

A

Ulnar nerve

80
Q

What cord of the brachial plexus does the ulnar nerve arise from?

A

Medial cord of the brachial plexus

81
Q

What is the origin and insertion of the triceps?

A

Long head:

Origin: Infragenoid tubercle of the Scapula

Inserts: Olecranon process of the ulna

Lateral and medial heads:

Origin: Humerus

Insert: Olecranon process of the ulna

82
Q

What is 16

A

Humeral head of pronator teres muscle

83
Q

What is the origin and insertion of the 2 heads of biceps bracii?

A

Long head:

Origin: Supraglenoid tubercle of the scapula

Insert: Radial tuberosity

Short head:

Origin: Coracoid process

Insert: Radial tuberosity

84
Q

What is C

A

Coracobrachialis

2nd Year - Anatomy (34 decks)

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