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MSK upper extremity Flashcards

1
Q

What is the primary bone of the upper arm?

A

Humerus

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2
Q

Which joint connects the upper limb to the trunk?

A

Sternoclavicular joint

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3
Q

What is the name of the bony prominence at the distal end of the humerus?

A

Olecranon

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4
Q

True or False: The scapula is part of the upper limb.

A

True

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5
Q

What is the origin of the biceps brachii?

A

Supraglenoid tubercle and coracoid process of the scapula

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6
Q

Which muscle is responsible for shoulder abduction?

A

Deltoid

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7
Q

Fill in the blank: The _____ is the bone of the forearm that is located on the thumb side.

A

Radius

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8
Q

What action is performed by the triceps brachii?

A

Elbow extension

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9
Q

Name the joint formed between the humerus and the scapula.

A

Glenohumeral joint

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10
Q

True or False: The ulna is the larger bone of the forearm.

A

False

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11
Q

What is the insertion of the pectoralis major?

A

Lateral lip of the bicipital groove of the humerus

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12
Q

Which muscle originates from the lateral epicondyle of the humerus?

A

Extensor carpi radialis brevis

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13
Q

What action do the flexor muscles of the forearm primarily perform?

A

Wrist flexion

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14
Q

Fill in the blank: The _____ is a bony landmark of the scapula that serves as an attachment for muscles.

A

Spine

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15
Q

What is the primary function of the rotator cuff muscles?

A

Stabilization of the glenohumeral joint

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16
Q

Which muscle is known for its role in external rotation of the shoulder?

A

Infraspinatus

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17
Q

True or False: The carpal bones are part of the upper arm.

A

False

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18
Q

What is the action of the latissimus dorsi?

A

Shoulder extension, adduction, and internal rotation

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19
Q

Where does the supraspinatus muscle insert?

A

Greater tubercle of the humerus

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20
Q

Which joint allows for the pronation and supination of the forearm?

A

Proximal radioulnar joint

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21
Q

Fill in the blank: The _____ is the main extensor of the wrist.

A

Extensor carpi radialis longus

22
Q

What is the origin of the brachialis muscle?

A

Distal half of the anterior surface of the humerus

23
Q

Which bone articulates with the humerus at the elbow joint?

24
Q

True or False: The trapezius muscle is involved in shoulder elevation.

25
Q

What is the insertion point for the flexor carpi ulnaris?

A

Pisiform, hook of the hamate, and base of the fifth metacarpal

26
Q

Which muscle is primarily responsible for flexing the elbow?

A

Biceps brachii

27
Q

What action does the serratus anterior perform?

A

Protraction of the scapula

28
Q

Fill in the blank: The _____ is the bony landmark where the deltoid muscle originates.

29
Q

What is the primary action of the flexor digitorum profundus?

A

Flexion of the distal phalanges of the fingers

30
Q

Which muscle originates from the medial epicondyle of the humerus?

A

Flexor carpi radialis

31
Q

True or False: The humerus has a greater tubercle and a lesser tubercle.

32
Q

What is the action of the pronator teres?

A

Pronation of the forearm

33
Q

Where does the teres major muscle insert?

A

Medial lip of the bicipital groove of the humerus

34
Q

Fill in the blank: The _____ joint allows for flexion and extension of the elbow.

35
Q

What is the origin of the coracobrachialis muscle?

A

Coracoid process of the scapula

36
Q

Which muscle is responsible for wrist extension?

A

Extensor carpi ulnaris

37
Q

True or False: The acromion is part of the scapula.

38
Q

What is the insertion of the deltoid muscle?

A

Deltoid tuberosity of the humerus

39
Q

Which muscle aids in shoulder flexion and adduction?

A

Pectoralis major

40
Q

Fill in the blank: The _____ is a ligament that stabilizes the sternoclavicular joint.

A

Costoclavicular ligament

41
Q

What action does the extensor digitorum perform?

A

Extension of the fingers

42
Q

Where does the flexor pollicis longus originate?

A

Anterior surface of the radius and interosseous membrane

43
Q

True or False: The radial nerve innervates the flexor muscles of the forearm.

44
Q

What is the primary function of the anconeus muscle?

A

Assist in elbow extension

45
Q

Which bony landmark is located on the anterior surface of the scapula?

A

Subscapular fossa

46
Q

What is the action of the flexor digitorum superficialis?

A

Flexion of the middle phalanges of the fingers

47
Q

Fill in the blank: The _____ is the muscle that allows for the opposition of the thumb.

A

Opponens pollicis

48
Q

What is the insertion of the brachioradialis?

A

Styloid process of the radius

49
Q

True or False: The ulnar nerve innervates the majority of the muscles in the anterior forearm.

50
Q

Which muscle originates from the supraspinous fossa?

A

Supraspinatus

51
Q

What is the action of the subscapularis muscle?

A

Internal rotation of the shoulder

Anatomy (9 decks)

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