Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

SF1 2 > Joints of the Upper Limb > Flashcards

Joints of the Upper Limb Flashcards

1
Q

Joint located between the acromion of scapula and lateral end of clavicle

A

Acromioclavicular (AC) joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The Acromioclavicular joint is what type of joint

A

Synovial plane joint (joint capsule surrounds joint cavity).

Other info: Gliding movements occur when the scapula rotates or clavicle is elevated or depressed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The articular surfaces (of the acromioclavicular joint) are made up of _______ _______ and are separated by a fibrocartilaginous disk either partly or completely

A

hyaline cartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Extrinsic ligaments of the acromioclavicular joint (3)

A

1/2) superior and inferior acromioclavicular ligaments

3) coracoclavicular ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Role of the superior/inferior acromioclavicular ligaments in the AC joint

A

reinforce the joint capsule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Very strong bipartite accessory ligament from coracoid process to clavicle. Suspends weight of scapula and upper extremity from clavicle

A

coracoclavicular ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Medical term for separated shoulder

A

dislocation of the acromioclavicular joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why is separated shoulder a misnomer?

A

Shoulder joint is not dislocated. Dislocated AC joint and torn coracoclavicular ligament.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What happens with the trapezius in a separated shoulder?

A

trapezius pulls clavicle superiorly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Most commonly dislocated joint in adults due to the shallowness of the glenoid fossa

A

Glenohumeral joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What type is the glenohumeral joint

A

synovial ball and socket joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Two openings in the capsule surrounding the glenohumeral joint

A

1) opening between tubercles of humerus for passage of tendon of long head of biceps brachii
2) opening anteriorly for communication with subscapular bursa, which is an outpocketing of synovial membrane from within joint cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Fibrocartilaginous rim deepening the shallow glenoid cavity

A

glenoid labrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Ligaments of the glenohumeral joint (3)

A

1) Superior, middle, and inferior glenohumeral ligaments (thickening of the anterior part of capsule)
2) Transverse Humeral Ligament (accessory ligament extending from greater to lesser tubercles of humerus. Forms a bridge over bicipital groove (intertubercular sulcus) that holds tendon of long head of biceps against humerus
3) Coracohumeral ligament (strong and extends from coracoid process of scapula to greater tuberosity of humerus)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Hold head of humerus in glenoid cavity

A

tendons of rotator cuff muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Direction most dislocations of the humeral head occur in the glenohumeral joint

A

downward (inferior) direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Joint between trochlea and capitulum of humerus and trochlear notch of ulna and head of radius

A

elbow joint

18
Q

Elbow joint is which type

A

synovial hinge joint

19
Q

Strong triangular shaped ligament extending from lateral epicondyle of humerus to annular ligament

A

radial (lateral) collateral ligament

20
Q

Consists of three strong bands extending mostly from medial epicondyle of humerus to ulna

A

ulnar (medial) collateral ligament

21
Q

Why is the elbow joint capsule weak anteriorly and posteriorly?

A

To allow for flexion and extension of the forearm

22
Q

Humerus driven through weak anterior capsule of joint. May damage ulnar nerve. Typically a fall onto an outstretched hand with elbow in extension upon impact

A

posterior dislocation of elbow joint

23
Q

Joint between circumference of head of radius and radial notch of ulna

A

proximal radio-ulnar joint

24
Q

proximal radio-ulnar joint is what type

A

synovial pivot joint (permits supination and pronation of forearm in conjunction with distal radio-ulnar joint)

25
Q

Forms a collar around head of radius. Is attached to margins of radial notch on ulna.

A

Annular ligament

26
Q

What might be ruptured in the dislocation of the radial head

A

annular ligament

27
Q

Syndesmosis formed by the interosseous membrane of forearm. Fibers in membrane run inferiorly and medially from medial border of radius to ulna. Membrane transmits force from radius to ulna, and from ulna to humerus as occurs in a fall on outstretched hand. This prevents the head of radius from being thrust against capitulum of humerus, which could result in fracture of radial head

A

middle radio-ulnar joint

28
Q

Joint between head of ulna and ulnar notch on distal end of radius.

A

distal radio-ulnar joint

29
Q

Distal radio-ulnar joint is what type

A

synovial pivot type joint permitting supination and pronation of forearm

30
Q

Extends from lower border of ulnar notch of radius to base of styloid process of ulna. Separates distal radio-ulnar joint from wrist joint. Strongly like radius and ulna.

A

articular disc

31
Q

Synovial plane joints allowing a small amount of gliding movement between carpal bones

A

intercarpal joints

32
Q

Compare the carpometacarpal joints for metacarpals 2-5 and carpometacarpal joint of thumb

A

the carpometacarpal joints for metacarpals 2-5 permit little movement while the carpometacarpal joint of thumb is a synovial saddle shaped joint that permits flexion-extension and adduction-abduction

33
Q

Joint between radius and articular disc of distal radioulnar joint above scaphoid/lunate/triquetral bones below. Ulna does not participate in this joint.

A

Wrist or Radiocarpal joint

34
Q

What type is the radiocarpal joint

A

ellipsoidal synovial joint permitting movements of abduction-adduction, flex/extension, and cricumduction

35
Q

Extend from styloid processes of radius and ulna to carpal bones, respectively. Somewhat limit abduction-adduction movements

A

radial and ulnar collateral ligaments

36
Q

Fracture of the distal end of the radius and ulna styloid. Common fracture in persons 50 years of age and older. Most common fracture of the forearm. More frequent in women. Typically occur when person falls on outstretched hands. Distal fragment of radius is often displaced posteriorly from shaft of radius resulting in a dinner-fork deformity.

A

Colles’ fracture

37
Q

Synovial condyloid joints between heads of metacarpal bones and base of proximal phalanges. Permit movements of flexion-extension and abduction-adduction

A

Metacarpophalangeal (MP) Joints

38
Q

Firmly attach phalanx to metacarpals. Are tense when joint is extended

A

palmar ligaments

39
Q

Hold heads of metacarpal bones together.

A

Deep transverse metacarpal ligaments

40
Q

Present on medial and lateral sides of MP joints. Tense when joint is flexed.

A

collateral ligaments

41
Q

Have synovial hinge type of articulations between phalangeal bones

A

Interphalangeal (IP) joints

SF1 2 (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions