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MSK > MSK 1-Additional Flashcards > Flashcards

MSK 1-Additional Flashcards

1
Q

Which muscle laterally rotates the scapula?

A

serratus anterior

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2
Q

The scapular motion occurs at the

A

scapulothoracic joint (conceptual)

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3
Q

The small space for the supraspinatus beneath the acromion is called the

A

subacromial space

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4
Q

What muscle elevates proximal fragment of fractured clavicle and helps protect the underlying neurovasculature damage?

A

Sternocleidomastoid Muscle (SCM)

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5
Q

2 ligaments of the acromioclavicular (AC) joint

A
  1. acromioclavicular ligament

2. coracoclavicular ligament

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6
Q

A strong pair of ligaments that unites coracoid process and the clavicle

A

coracoclavicular ligament

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7
Q

two ligaments that make up coracoclavicular ligament

A
  1. trapezoid ligament

2. conoid ligament

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8
Q

Positive piano sign can be observed in what degree AC injury?

A

3rd degree

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9
Q

The lateral cord of brachial plexus includes

A

anterior divisions of superior and middle trunks

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10
Q

The medial cord of brachial plexus includes

A

anterior division of inferior trunk

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11
Q

The posterior cord of brachial plexus includes

A

posterior divisions of ALL 3 trunks

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12
Q

The lateral cord of brachial plexus gives rise to what terminal branches?

A
  1. musculocutaneous nerve

2. lateral root of median nerve

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13
Q

The posterior cord of brachial plexus gives rise to what terminal branches?

A
  1. axillary nerve

2. radial nerve

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14
Q

The medial cord of brachial plexus gives rise to what terminal branches?

A
  1. medial root of median nerve

2. ulnar nerve

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15
Q

In addition to the 5 MAJOR branches off the Brachial Plexus, what are the smaller branches? (8 total)

A
  1. Dorsal Scapular (C5)
  2. Long Thoracic (C5-7)
  3. Suprascapular (C5-C6)
  4. Lateral Pectoral (C5-C7)
  5. Medial Pectoral (C8 and T1)
  6. Medial Cutaneous nerve of arm (C8 and T1)
  7. Medial Cutaneous nerve of forearm (C8 and T1)
  8. Subscapular Nerves
    - Upper (C5, C6)
    - Middle (C6-C8)
    - Lower(C5, C6)
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16
Q

What is also known as a funny bone

A

medial epicondyle

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17
Q

A deep depression which receives the olecranon process of the ulna during extension of the elbow/forearm

A

olecranon fossa

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18
Q

Two heads (short and long) of biceps inserts into radius via

A

radial tuberosity

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19
Q

Two heads (short and long) of biceps inserts into antebrachial fascia via

A

bicipital aponeurosis

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20
Q

Musculocutaneous nerve (C5 and C6) innervates and pierces what muscle?

A

coracobrachialis muscle

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21
Q

What lines the inside of the Glenohumeral Joint capsule and reflects and surrounds the tendon of the ________________?

A

Synovial Membrane; long head of biceps

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22
Q

What holds long head of bicep tendon in the bicipital groove/intertubercular sulcus?

A

Transverse humeral ligament

23
Q

Dislocations at the glenohumeral joint are most common in the anterior-inferior direction and is called

A

sub-coracoid or anterior dislocations

humeral head ends up beneath the coracoid process

24
Q

The orientation of interosseous membrane assists in transferring forces from the radius to the ulna especially during a

A

FOOSH

25
Q

Dinner fork deformity is produced by

A

distal radial fracture fragment displacing dorsally (posteriorly)

26
Q

Inflammation of thumb extensor/abductor tendons is called

A

De Quervain’s tenosynovitis

27
Q

Radial nerve divides into what two main branches in the forearm?

A
  1. Superficial Branch

2. Deep Branch

28
Q

What branch of radial nerve pierces through supinator muscle and continues as Posterior Interosseous Nerve (PIN) which innervates extensors of wrist/fingers?

A

Deep Branch

29
Q

What is also known as Saturday night fracture?

A

Boxer’s fracture (fracture of 5th metacarpal)

30
Q

Palmar aponeurosis sends what septum to the 5th metacarpal?

A

medial septum

31
Q

Palmar aponeurosis sends what septum to the 3rd metacarpal?

A

lateral septum

32
Q

Fibrous digital sheaths are composed of what ligaments?

A

5 annular and 4 cruciform ligaments

33
Q

Trigger fingers is also known as

A

stenosing tenosynovitis

34
Q

Hypothenar compartment is innervated by

A

deep branch of ulnar nerve

35
Q

Damage to what nerve can cause ape hand due to thenar atrophy?

A

recurrent branch of median nerve

36
Q

Adductor compartment is innervated by

A

deep branch of ulnar nerve

37
Q

Lumbricals arise from

A

sides of FDP tendons

38
Q

Interosseous compartment is innervated by

A

deep branch of ulnar nerve

39
Q

Ulnar artery divides into what two terminal branches?

A
  1. Superficial palmar arch

2. Deep Palmar branch

40
Q

Superficial palmar arch gives rise to what smaller branches?

A
  1. Common palmar digital arteries

2. Proper Palmar digital arteries

41
Q

Radial artery gives rise to what two branches of the hand?

A
  1. Radial indicis artery (index finger)

2. Princeps Pollicis artery (thumb)

42
Q

Radial artery anastomoses with the deep palmar branch of ular artery to form

A

Deep Palmar Arch

43
Q

What are the two arterial arches of the hand?

A
  1. Superficial Palmar Arch

2. Deep Palmar Arch

44
Q

What is the difference between superficial palmar arch and deep palmar arch?

A
  1. Superficial Palmar Arch is formed mainly by the ULNAR artery.
  2. Deep Palmar Arch is formed mainly by the RADIAL artery
45
Q

Transverse plane (cervical facet joint) orientation allows what movement?

A

Multiaxial movement

46
Q

Coronal/frontal plane (thoracic facet joint) orientation allows what movement?

A

Rotational movement

47
Q

Sagittal plane (lumbar facet joint) orientation allows what movement?

A

flexion and extension

48
Q

Interconnecting vertebral venous plexuses (VVP) are directly connected to pelvic vein system and azygos system (which run along the thracic column). This connection allows easy

A

metastasis to the vertebral column causing metastatic bone cancer

49
Q

95% of LUMBAR disc herniations occur

A

at L4/L5 and at L5/S1

50
Q

A posterolateral disc herniation between L4/L5 affects what nerve

A

L5 (it’s the next spinal nerve that gets affected)

51
Q

A posterolateral disc herniation between L5/S1 affects what nerve

A

S1 (it’s the next spinal nerve that gets affected)

52
Q

What is the branch of axillary nerve that supplies sensation to the lateral shoulder skin area; its damage can cause loss of sensation in lateral aspect of shoulder/deltoid when surgical neck fracture occurs

A

superior lateral cutaneous nerve

53
Q

What nerve pierces through the coracobrachialis?

A

the musculocutaneous nerve of lateral cord

MSK (8 decks)

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