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Anatomy 2 Exam > Arthrology of the elbow wrist and hand > Flashcards

Arthrology of the elbow wrist and hand Flashcards

1
Q

What kind of joint is the humeroulnar joint ?

A

Hinge joint

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2
Q

What kind of joint is the humeroradial joint ?

A

plane/ gliding

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3
Q

What kind of joint is the proximal-radioulnar joint ?

A

pivot

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4
Q

What kind of joint is the distal radio-ulnar joint ?

A

pivot

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5
Q

What kind of joint is the Radiocarpal joint ?

A

ellipsoidal or condyloid

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6
Q

What kind of joint is the carpometacarpal joint ?

A

First: sellar/saddle
2nd-5th: plane gliding

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7
Q

What kind of joint is the Metacarpophalangeal joint?

A

ellipsoidal

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8
Q

What kind of joint is the interphalangeal joint ?

A

hinge

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9
Q

Where does the ulnar or medial collateral ligament of the elbow attach?

A

From the medial epicondyle of the humerus too the medial margin of the coronoid process and olecranon process

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10
Q

What is the function of the Ulnar collateral ligament of the elbow?

A

resists cubital valgus * important roll between 20-130 deg. of motion

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11
Q

What are the three bands of the ulnar collateral ligament ?

A

Anterior
Posterior
Transverse

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12
Q

What is the most commonly ruptured band of the ulnar collateral ligament?

A

Anterior band: usually ruptured at end range extension

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13
Q

What does the anterior bundle of the ulnar collateral ligament resist?

A

Primarily resists elbow valgus between 20-120 deg. of motion

taught w/terminal extension

secondary restraint at end range flexion beyond 120 deg.

strongest

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14
Q

What does the posterior band of the ulnar collateral lig. restrict?

A

Also resists elbow valgus : acts as a co restraint at end range / terminal flexion with anterior band

2nd restraint to valgus stress at lesser deg. of flexion

taught at 55 deg. of elbow flexion

weakest

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15
Q

What is the purpose of the transverse /oblique bundle of the ulnar collateral ligament

A

deepens socket for trochlea of the humerus

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16
Q

What are the attachments for the annular ligament?

A

From the anterior margin of the radial notch of the ulna to the posterior margin of the radial notch of the ulna surrounding the head of the radius

17
Q

What is the function of the triangular fibrocartilage complex ligament?

A
  1. Stabilize distal radial joint by binding the radius and ulna
  2. Transfer compression forces from hand and wrist to the forearm
  3. Cushion ulnar side force transmission
18
Q

What is the function of the annular ligament?

A

stabilizes proximal radial ulna joint / radial head

19
Q

What are the components of the Triangular fibrocartilage complex (TFCC)

A
  1. Biconcave fibrocartilage disc
  2. Palmar Ulnocarpal ligament
    3.Ulnar collateral ligament
20
Q

What is the function of the annular ligament?

A

Stabalizes proximal radioulnar joint

21
Q

What is the attachments of the interosseous membrane?

A

from interosseous border of radius to interosseous border of ulna

22
Q

What is the attachment of the lateral / radial collateral ligament of the elbow?

A

Lateral epicondyle to the annular ligament

23
Q

What is the function of the Transverse carpal ligament?

A

Prevents bowstringing of the tendons of the FPL,FDS,FDP

24
Q

What is the attachments of the transverse carpal ligament?

A

From the pisiform and hook of hamate to scaphoid and trapezium

25
Q

What is the function of the Volar/Palmar and Dorsal radiocarpal ligaments?

A

Stabalize the carpal bones on the radius

26
Q

What are the attachments of the radoiocarpal ligaments?

A

dorsal/volar surface of the distal radius to the first two rows of the carpal bones

27
Q

What is the function of the ulnar collateral lig. of the wrist ?

A

resists radial deviation

28
Q

What is the attachments of the ulnar collateral lig. of the wrist?

A

From the ulnar styloid process to the triquetrum

29
Q

What is the function of the radial collateral lig. of the wrist ?

A

resists ulnar deviation

30
Q

What is the attachments of the radial collateral lig. of the wrist?

A

radial styloid process to scaphoid

31
Q

Attachments of the collateral lig. of the metacarpophalangeal joints

A

From the head of the metacarpals to the base of the proximal phalanx

32
Q

Injury to the TFF

A

FOOSH
extension with ulnar compression
forced radial or ulnar deviation
strong distraction force

disc and ligament damage

Anatomy 2 Exam (4 decks)

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