Brainscape's Knowledge GenomeTM

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


See full index

1019 Regional > Arm, Elbow, Forearm > Flashcards

Arm, Elbow, Forearm Flashcards

1
Q

What muscle group attaches to the medial epicondyle?

A

Anterior forearm muscles

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

What muscle group attaches to the lateral epicondyle?

A

Posterior forearm muscles

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

3 characteristics of the distal humerus

A

Humeral torsion (allows greater range of motion), Anterior curve on distal end (allows more flexion than extension) Oblique inferomedial joint axis (allows for valgus alignment)

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

Definition of varus

A

Medial deviation of distal segment relative to proximal segment

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

Definition of valgus

A

Lateral deviation of distal segment relative to proximal segment

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

What is the degree of valgus in the elbow?

A

10-15 degrees valgus

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

Function of the fossa below the radial notch on the ulna

A

Allows radial tuberosity to change position in pronation and supination

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

What are the 3 joints in the elbow joint complex?

A

Humeroulnar (Hinge joint), Humeroradial(Ball and socket joint) and Proximal radioulnar joints (Pivot joint)

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

What is the functional classification of the elbow joint?

A

Uniaxial Synovial hinge joint

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

At which degree does the olecranon engage in the olecranon fossa?

A

0 degeree extension to 20 degrees flexion

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

What are the 2 synovial bursae present in the elbow joint?

A

Olecranon and subtendinosus bursa

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

What is the function of the subtendinous bursa?

A

Reduce friction between tendon of triceps brachii and the joint

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

What are the collateral ligaments in the elbow?

A

Lateral collateral ligament complex and Medial (Ulnar) collateral

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

What is the function of the anular ligament of radius?

A

Principal stabiliser of proximal radioulnar joint

Reinforce joint capsule laterally

allow radial head to slide against radial notch of ulna and pivot on capitulum during pronation and supination

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

What movement tauts the anterior capsule?

A

Extension

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

What force does the anterior capsule resist?

A

Valgus

17
Q

Why is the posterior capsule less stable?

A

It is loose to allow full range of motion.

18
Q

What are the 2 types of stability?

A

Static stability and dynamic stability

19
Q

What structures provide passive stability to the elbow joint?

A

Articular surfaces, joint capsule, ligaments and interosseous membrane.

20
Q

What are the muscles that cross the elbow joint?

A

Biceps, Triceps and brachialis

21
Q

Which ligaments are primary constraints?

A

Anterior medial collateral ligament, Lateral collateral ligament complex, Ulnohumeral articulation

22
Q

What structures are secondary constraints?

A

Radiohumeral articulation, Common flexor-pronator tendon, Common extensor tendon and capsule

23
Q

What are the boundaries of the cubital fossa?

A

Imaginary line between medial and lateral epicondyles (Superior), Lateral boundary of pronator teres (Medial), Medial border of brachioradialis (Lateral)

24
Q

What are the main contents of the cubital fossa?

A

Radial nerve (C5-T1), Tendon of biceps brachii, Brachial Artery and median nerve (C6-T1)

25
Q

What are the boundaries of the cubital tunnel?

A

Ligament between medial epicondyle and olecranon (Roof), Elbow joint capsule and medial collateral ligament of elbow (Floor)

26
Q

What nerve travels through the cubital tunnel?

A

Ulnar nerve

27
Q

What does the medial collateral ligament consist of?

A

Anterior and Posterior medial collateral ligaments and transverse band

28
Q

What force does the MCL resist

A

Valgus

29
Q

What is the function of the AMCL?

A

Major joint stabiliser, taut through full ROM

30
Q

Where does the AMCL insert?

A

Coronoid process

31
Q

What is the function of the PMCL?

A

Taut in flexion, lax in extension

32
Q

Where does the PMCL insert?

A

Olecranon process

33
Q

Does the transverse band contribute to joint stabiltiy?

A

no

34
Q

What does the lateral collateral ligament complex consist of?

A

Radial collateral ligament, annular ligament, lateral ulnar collateral ligament

35
Q

Where does the Radial collateral ligament attach to?

A

Lateral epicondyle of humerus and blends with anular ligament

36
Q

What force does the lateral collateral ligament complex resist?

A

Varus and posterolateral instability

1019 Regional (9 decks)

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