1
Q
CORACOBRACHIALIS
- Origin
- Insertion
A
Origin:
- Coracoid process
Insertion:
- Medial humerus
2
Q
Corachobrachialis
- Actions
- Innervation
A
Action
- Arm flexion/adduction
Innervation:
- Musculocut. n (C5-7)
3
Q
Biceps Brachii
- Origin
- Insertion
A
Origin:
- Short head: coracoid process
- Long head: supraglenoid tubercle
Insertion:
- Radial tuberosity (stronger one)
- Bicipital aponeurosis (weaker one)
4
Q
Biceps Brachii
- Actions
- Innervation
A
Action:
- Arm flexion
- Forearm supination
Innervation:
- Musculocut. n.
5
Q
Brachialis
- Origin
- Insertion
A
Origin:
- Distal anterior humerus
Insertion:
- Ulnar tuberosity
- Ulnar coronoid process
6
Q
Brachialis
- Actions
- Innervation
A
Action
- Flexion of elbow joint
Innervation
- Musculocut. n.
7
Q
Triceps Brachii
- Origin
- Insertion
A
Origin:
- Long head: infraglenoid tubercle
- Medial head: posterior humerus and medial IM septum; distal to spiral groove
- Lateral head: beneath greater tubercle; lateral and proximal to spiral groove
Insertion:
- Flat common end tendon at olecranon process (all three heads)
8
Q
Triceps Brachii
- Actions
- Innervation
A
Action
- Extension of elbow joint
- Long head: At shoulder, involved in extension/adduction of arm
Innervation:
- Radial n. (C5-C8)
9
Q
Aconeus
- Origin
- Insertion
A
Origin:
- Pos. lateral epicondyle
- Lateral collateral lig.
Insertion:
- Proximal ¼ of pos. ulnar
- (near tri. Medial head)
10
Q
Aconeus
- Actions
- Innervation
A
Actions:
- Assist triceps in extension
- Abduct/rotate ulna during forearm pronation
Innervation:
- Radial n.
