elbow chapter 14 Flashcards

1
Q

define what joint is the humeroulnar joint

A

Hinge joint
ROM: 0°-145°
Loose-Pack Position
70° flexion, 10° supination

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

when is the humeroulnar joint a closed pack

A

extension

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

what type of axial of the humerolnar joint

A

Diarthrodial
Uniaxial
1° freedom
√ and / in sagittal plane

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

define the humeroradial closed and open pack

A

Loose Pack Position
Opposite humeroulnar joint
Full Extension & supination

Closed pack position
90° √, 5° forearm supination

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

define the inferior radialulnar joint closed/open pack

A

Loose Pack
10 º supination

Closed Pack
5 º supination

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

the motions of the radioulnar joint

A

Forearm motions
~90° supination
~80° pronation

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

what are the ROM of the joints

A

Uniaxial joint
A. flexion √ ~145°
B. extension / 0°

Active hyper extension blocked by the olecranon process

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

what is the relationship of ulna and radius in extension

A

The radius and ulna are not in line with the humerus on extension
Hand is on outside of imaginary line

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

when is the hand in the inside

A

in flexion, the hand is on the inside
Functionally better
Getting hand to mouth

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

define the joint capsule

A

Humeroulnar, humeroradial, and superior radioulnar joints all within

Strengthened by annular ligament and collateral ligament

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

define the medial or ulnar collateral ligament

A

Triangular shaped
Medial stability

Medial epicondyle to coronoid and olecranon process of ulna

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

define the lateral or radial collateral ligament

A

Triangular shaped
Lateral stability

Lateral epicondyle to annular ligament and lateral ulna

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

define the annular ligament

A

Encompasses radial head
Holds it against ulna

Attaches anteriorly & posteriorly to radial notch of the ulna

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

interosseous membrane function

A

Keeps radius and ulna together
Serves as a muscle attachment

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

Radioulnar articulations held together by

A

Annular ligament
Interosseous membrane

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