Pectoral Limbs and Girdle Flashcards by Emma Davies

Q

origin of epitrochlearis

A

surface of latissimus dorsi

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Q

insertion of epitrochlearis

A

olecranon process of ulna

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Q

main action of epitrochlearis

A

extends antebrachium

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Q

origin of biceps brachii

A

small tubercle near dorsal glenoid fossa of scapula

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Q

insertion of biceps brachii

A

bicipital tuberosity of radius

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Q

main actions of biceps brachii

A

flexes antebrachium

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Q

origin of the long head of the tricep brachii

A

deltoid ridge of humerus

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Q

insertion of long head of the tricep brachii

A

the olecranon process of ulna

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Q

main action of long head of the tricep brachii

A

extend antebrachium

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Q

origin of medial head of the tricep brachii

A

posterior border of scapula

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Q

insertion of medial head of the tricep brachii

A

the olecranon process of ulna

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Q

main action of medial head of the tricep brachii

A

extend antebrachium

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Q

origin of lateral head of the tricep brachii

A

shaft of humerus

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Q

insertion of lateral head of the tricep brachii

A

the olecranon process

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Q

main action of lateral head of the tricep brachii

A

extend antebrachium

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Q

origin of brachialis

A

lateral surface of humerus

Q

insertion of brachialis

A

lateral surface of ulna

Q

main action of brachialis

A

flexes antebrachium

Q

origin of supraspinatus

A

supraspinous fossa of scapula

Q

insertion of supraspinatus

A

greater tuberosity of humerus

Q

main action of supraspinatus

A

extends humerus

Q

origin of infraspinatus

A

infraspinous fossa of scapula

Q

insertion of infraspinatus

A

greater tuberosity of humerus

Q

main actions of infraspinatus

A

rotates humerus laterally

Q

origin of subscapularis

A

sub scapular fossa of scapula

Q

insertion of subscapularis

A

lesser tuberosity of humerus

Q

main action of subscapularis

A

adducts humerus

Q

origin of teres major

A

dorsal third of posterior border of scapula

Q

insertion of teres major

A

medial surface fo humerus

Q

main action of teres major

A

flexes and medially rotates humerus

Q

origin of teres minor

A

posterior border of scapula, just distal to glenoid fossa

Q

insertion of teres minor

A

greater tuberosity of humerus

Q

main action of teres minor

A

flexes and laterally rotates humerus