arm & elbow Flashcards

1
Q

List the condyles of the humerus

A

Capitulum

Trochlear

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

List the epicondyles of the humerus and function

A

Medial
lateral
-primary site of muscle attachment

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

List the three fossa of the humerus

A

Olecranon
coronoid
radial

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

Humeroulnar articulation( type and action)

A

hinge

flexion and extension

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

humeroradial articulation(type and action)

A

modified hinge

  • flexion/extension
  • supination/pronation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

proximal radioulnar (type and action)

A

pivot

supination/pronation

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

distal radioulnar (type and action)

A

pivot supination/pronation

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

Annular ligament

A

encircles head of the radius
holds the head of the radius against the ulna
protects against distal dislocation of the radius

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

Lateral collateral ligament

A

lateral epicondyle to annular ligament of radius
protects against medial deviation of forearm
taut in full extension

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

medial collateral ligament

A

Medial epicondyle of humerus to coronoid process and olecranon process

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

what structures are close in extension?

A

Olecranon process is close to the distal humerus in the olecranon fossa

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

what structures are close in flexion?

A

Coronoid process and radius approach their respective fossa

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

what happens in supination and what is included?

A

radial head spins on the capitulum

  • humeroradial joint
  • proximal and distal radioulnar joints
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the muscles acting on the elbow in the anterior compartment and what innervates them?

A

biceps brachii
brachialis
-Musculocutaneous nerve

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

What are the muscles acting on the elbow in the posterior compartment and what innervates them?

A

triceps
anconeus
brachioradialis
-Radial nerve

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

Biceps brachii(attachments)

A
  • Short head: coracoid process of the scapula
  • long head: supraglenoid tubercle
  • both heads: radius via bicipital aponeurosis
17
Q

Biceps brachii(action and innervation)

A

flexes elbow
supinates the forearm
-musculocutaneous nerve

18
Q

Brachialis(attachments)

A

distal anterior humerus

coronoid process of the ulna

19
Q

Brachialis(action and innervation)

A

Flexes forearm

-Musculocutaneous nerve

20
Q

Triceps brachii(attachments)

A

Long head: intfraglenoid tubercle
lateral head: posterior inf. humerus
Medial head: posterior inf humerus
all heads: olecranon of the ulna

21
Q

Triceps brachii(action and innervation)

A

Extend elbow

-radial nerve

22
Q

Anoconeus(attachments)

A

Lateral epicondyle of humerus

olecranon of ulna

23
Q

Anoconeus(action and innervation)

A

extends the forearm

radial nerve

24
Q

brachioradialis (attachments)

A

Lateral portion of distal humerus

-lateral, distal radius

25
Brachioradialis (action and innervation)
flexes elbow | radial nerve
26
Supinator(attachments)
lateral epicondyle of humerus and proximal ulna | proximal radius
27
Supinator(action and innervation)
supinates forearm | -radial nerve
28
What are the muscles acting on the radioulnar joint?
Biceps brachii pronator teres pronator quadratus
29
Pronator Teres(attachments)
cornoid process and medial epicondyle | -lateral surface of radius
30
Pronator teres (action and innervation)
pronates and flexes forearm | median nerve
31
pronator quadratus(attachments)
Distal anterior ulna | distal anterior radius
32
pronator quadratus(action and innrvation)
pronates forearm | median nerve