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Upper Limb > Muscles of Arm > Flashcards

Muscles of Arm Flashcards

0
Q

Biceps Brachii

Insertion

A

Radial tuberosity and fascia of forearm via bicipital aponeurosis

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1
Q

Biceps Brachii

Origin

A

Short Head-tip of coracoid process of scapula

Long head-supraglenoid tubercle of scapula

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2
Q

Biceps Brachii

Innervation

A

Musculocutaenous (C5, C6)

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3
Q

Biceps Brachii

Actions

A

Supinates forearm, when supinated, elbow and shoulder joint flexor, short head resists dislocation of shoulder

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4
Q

Brachialis

Origin

A

Distal half of anterior half of humerus

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5
Q

Brachialis

Insertion

A

Coronoid process and tuberosity of ulna

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6
Q

Brachialis

Innervation

A

Musculocutaenous (C5, C6)

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7
Q

Brachialis

Actions

A

Flexes elbow joint in all positions

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8
Q

Coracobrachialis

Origin

A

Tip of coracoid process of scapula

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9
Q

Coracobrachialis

Insertion

A

Middle third of medial surface of humerus

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10
Q

Coracobrachialis

Innervation

A

Musculocutaenous Nerve

C5, C6, C7

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11
Q

Coracobrachialis

Actions

A

Helps flex and adduct shoulder joint; resists dislocation of shoulder

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12
Q

Triceps Brachii

Origin

A

Long head-infraglenoid tubercle of scapula
Lateral head-post. surface of humerus, superior to radial groove
Medial head-post. surface of humerus, inferior to radial groove

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13
Q

Triceps Brachii

Insertion

A

Proximal end of olecranon of ulna and fascia of forearm

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14
Q

Triceps Brachii

Innervation

A

Radial Groove

C6, C7,C8

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15
Q

Triceps Brachii

Actions

A

Chief extensor of elbow joint

Long-extends shoulder joint and resists dislocation of humerus (esp. during abduction)

16
Q

Anconeus

Origin

A

Lateral epicondyle of humerus

17
Q

Anconeus

Insertion

A

Lateral surface of olecraon and sup. part of post. surface of ulna

18
Q

Anconeus

Innervation

A

Radial nerve (C7, C8, T1)

19
Q

Anconeus

Actions

A

Assists triceps in extending elbow joint
Stabilizes elbow joint
Abducts ulna during pronation

Upper Limb (10 decks)

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