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MSK Test 1 ;-) > Upper Extremity Arthology > Flashcards

Upper Extremity Arthology Flashcards

1
Q

What is the sternoclavicular joint? What type of joint is it? What is it composed of?

A

Between the calvicular noth of the manubrium and sternal facet on sternal end of the clavicel

Sellar Synovial joint

articular capsule
articular dics
Costoclavicular L. 
Anterior and Posterior Sternoclavicular L. 
Interclavicular L.
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2
Q

What is the acromioclavicular joint? What type of joint is it? What is it composed of?

A

Between the acromial facet of the clavicle and scapula

planar synovial joint

articular capsule
articular disc 
acromioclavicular L. 
coracocalvicular l.
- 2 bands= Trapezoid L. and Conoid L.
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3
Q

What is “shoulder separation”?

A

injury and separation of the acromioclavicular joint

can seperate with or without rupture of coracoclaviuclar L.

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4
Q

What is the glenohumeral joint? What type of joint is it? What is it composed of?

A

Between glenoid cavity of scapular head and glenoid labrum of the head of the humerus

spherodial synovial joint

Gelnoid Labrum
Articular Capsule
- fibrous capsule= open in two places for long head of biceps brachi and communication with bursae
- synovial membrane: bursae of the glenohumeral joint (subscapular and subacromial)
Glenohumeral L.
Coracohumeral L.
Transverse Humeral L.
Coracoacromial Arch= contains Coracoacromial L. to prevent superior displacement of the humerus

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5
Q

How does dislocation of the Glenohumeral Joint most commonly occur?

A

anteriorly or inferiorly due to the presences of the Coracoacromial arch

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6
Q

What are the 2 joints in the elbow? What does the elbow contain?

A

Both are Ginglymus synovial joint

Humeroulnar Joint= trochlear notch of ulna wrapping around humeral trochlea
- ulnar L. of elbow which has anterior, posterior, and oblique band

Humeroradial joint=humeral capitulum with the fovea of the radial head
- radial collateral L. of the elbow

Articular capsule which surrounds

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7
Q

How is the elbow normally dislocated?

A

posteriorly in response to force transmitted along the long axis of the forearm

usually involves a tear in the ulnar collateral L.

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8
Q

What bursitis is involved in Student’s Elbow, Miner’s Elbow, or Dart thrower’s elbow?

A

Subcutaneous olecranon bursitis

excessive friction between the skin and olecranon

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9
Q

What are the 3 different articulations between the radius and the ulna? What types of joints are they?

A

Proximal Radioulnar= trochoid synovial joint

  • contains articular capsule and annular L.
  • site of pronation and supination

Middle radioulnar= syndesmosis
- contains oblique cord and interosseous membrane

Distal radioulnar= trochoid synovial
- contains articular capsule and articular disc of the distal radioulnar joint

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10
Q

What is the Radiocarpal (wrist) joint? What does it contain?

A

Condylar Synovial Joint beween distal end of radius, aritcular disc of radioulnar joint, and scaphoid, lunate, and triquetrum bones

articular capsule, aritcular disc of radioulnar joint
Palmar and Dorsal Radiocarpal L.
Palmar and Dorsal Ulnocarpal L.
Radial and Ulnar Collateral L.

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11
Q

What are the intercarpal joints? What type of joint? What do they contain?

A

Scapholuntae, Lunotriquetrum, Pisotriquetrum, Pisohamate, Trapeziotrapezoid, Capitiohamate, Trapeziocapitate

Planar synovial joints

Articular capsule
Posterior and anterior Intercarpal L.
Interosseous Intercarpal L.
Pisiform Joint with Pisohamate L.

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12
Q

What is a midcarpal joint? What kind of joint is it? What does it contain?

A

between proximal and distal rows of carpal bones

Sellar synovial joint

articular capsule

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13
Q

What kind of join is the 1st carpometacarpal joint?

A

Sellar Synovial joint, from trapezium to 1st metacarpal

contains articular capsule, Palmar and Dorsal Carpometacarpal L.

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14
Q

What kind of joint are the 2nd-5th carpometacarpal joint?

A

Planar Synovial Joint, from the distal carpal row to the 2nd-5th metacarpal

articular capsule
palamar and dorsal carpometacarpal L.
Psiometacarapal L.
Radiate carpal L.

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15
Q

What kind of joints are the intermetacarpal joints? How many are there? What do they contain?

A

Planar synovial

4

articular capsule
Dorsal and carpal intermetacarpal L.
Interosseous intermetacarpal L.

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16
Q

What kind of joints are the metacarpophalangeal? How many are there? What do they contain?

A

Condylar Synovial

5

articular capsule
Palmar L./plate
Medial and lateral collateral L
Deep Transverse Metacarpal L.

17
Q

What is Bull rider’s thumb?

A

Sprain of the Lateral Collateral L. or even avulsion of lateral part of the proximal phalanx of the thumb

18
Q

What is Skier or Game-keeper’s Thumb?

A

Laxity or rupture of both collateral ligamaents of the 1st metacarpophalngeal joints causing hyperaBducation of the joint

19
Q

What kind of joint is the 1st Interphalangeal Joint? What does it contain?

A

Ginglymus Synovial Joint

Aritcular Capsule
Palamar L./Plate
Medial and Lateral Collateral L.

20
Q

What kind of joint are the proximal Interphalangeal Joint? How many are there? What do they contain?

A

Ginglymus Synovial joint, union between 2nd-5th proximal and intermediate phalanges

4

articular capsule
Palmar L.
Medial and Lateral Collateral L.

21
Q

What kind of joint are the distal Interphalangeal Joint? How many are there? What do they contain?

A

Ginglymus Synovial Joint union between 2-5 intermediate and distal phalanges

Articular Capsule
Palmar L./Plate
Medial and Lateral Collateral L.

22
Q

What is Mallet or baseball finger?

A

Sudden hyperflexion of the distal interphalangeal joint can avulse the attachment of the long extensor tendon with that tendon away from the distal phalanx

23
Q

What are the scapular joint movements?

A

Elevation and depression
Protraction and Retraction
Rotation of the Glenoid Cavity up and down

24
Q

What are the movements of the glenohumeral joint?

A

Extension and flexion of the arm

Hyperextension of the arm

ABducation and aDducation of the arm

medial and lateral rotation

25
Q

What are the movements of the elbow joint?

A

Flexion and extension of forearm

26
Q

What are the movements of the Radioulnar joint?

A

pronation (thumb face medially)

supination (thumb facing laterally aka anatomical position)

27
Q

What are the movements of the wrist?

A 
Extension and felxion of the hand
ulnar flexion (medial movement)
radial flexion (lateral movement)
28
Q

What are the movements of the digits?

A

Extension and flexion

aBduction and aDduction
- these movements are with the middle finger as midline

29
Q

What are the movements of the thumb?

A 
Extension= lateral movement
Flexion= sweeping thumb across palmar surface
ABduction= anterior movement from anatomical 
ADduction= posterior movement from aBducted position
Opposition= thumb to pinky  
Reposition= returning thumb from opposed position
30
Q

What is the axillary fascia?

A

Costocoracoid membrane –> clavipecotral fascia –> suspensory L. of axilla
- name changes based on position

surrounds pectoralis minor and keeps the axillary fascia in place

31
Q

What are the important parts of the fascia of the brachium?

A

medial and lateral intermuscular septum which separate into anterior and posterior compartments

32
Q

What are the important parts of the fascia fo the antebrachium?

A

instead of septa have interosseous membrane to separate anterior (flexors) and posterior (extensors)

focal thickening happens creating extensor retinaculum which holds the extensors in place

palamar carpal L.

flexor retinaculum= stretches across the carpal tunnel, own separate layer not from the extensor retinaclum

33
Q

What are the important parts of the hand fascia?

A

Palmarais brevis M.
Lateral and medial fibrous septum for compartmentalization
Palmar aponeurosis (protection)
Retinacula cutis= attaches palmar aponeurosis to palm so skin doesn’t move around
Median nerve

34
Q

What is a dupuytren contracture?

A

palmar aponeurosis of hand fascia gets too dense or hard so your hand contracts and you can’t open it back up

35
Q

What are the compartments of the hand?

A 
Hypothenar
Central
Interosseous
ADductor
Thenar
36
Q

What are Synovial/Ganglion Cysts?

A

Irritation of the Synovial Sheaths can cause an accumulation of mucopolysaccharide fluid

MSK Test 1 ;-) (14 decks)

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