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*** Muscles *** > Upper Arm > Flashcards

Upper Arm Flashcards

1
Q

Anterior muscles

A

Brachialis
Biceps brachii
Coracobrachialis

Innervates by musculocutaneous nerve and supplied by the brachial artery
BBC - brachialis, biceps brachii, coracobrachialis

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2
Q

Brachialis

Origin

A

Medial and lateral surfaces of humerus

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3
Q

Brachialis

Insertion

A

Ulna tuberosity

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4
Q

Brachialis

Innervation

A

Musculocutaneous nerve

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5
Q

Brachialis

Function

A

Flexes at elbow

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6
Q

Biceps brachii

Origin

A

Long head = supraglenoid tubercle of scapula

Short head = coracoid process of scapula

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7
Q

Biceps brachii

Insertion

A 
Radial tuberosity 
(Tendon gives off the bicipital aponeurosis = roof of cubital fossa)
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8
Q

Biceps brachii

Innervation

A

Musculocutaneous nerve

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9
Q

Biceps brachii

Function

A

Supination of forearm

Flexes at elbow and shoulder

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10
Q

Coracobrachialis

Origin

A

Coracoid process of scapula

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11
Q

Coracobrachialis

Insertion

A

Medial side of humeral shaft

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12
Q

Coracobrachialis

Innervation

A

Musculocutaneous nerve

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13
Q

Coracobrachialis

Function

A

Flexes at shoulder

Weak adduction

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14
Q

Posterior muscles

A

Triceps brachii

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15
Q

Triceps brachii

Origin

A

Long head = infraglenoid tubercle of scapula
Medial head = humerus (inferior to radial/spinal groove)
Lateral head = humerus (superior to radial/spiral groove)

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16
Q

Triceps brachii

Insertion

A

Olecranon of the ulna

17
Q

Triceps brachii

Innervation

A

Radial nerve

18
Q

Triceps brachii

Function

A

Extension at elbow

*** Muscles *** (9 decks)

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