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Arm
Muscles
20
Anatomy
Professional
10/18/2011

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Cards

Term
What is the origin of the biceps brachii?
Definition
supraglenoid tubercle (long head); coracoid process (short head)
Term
What is the insertion of the biceps brachii?
Definition
radial tuberosity
Term
What is the nerve supply of the biceps brachii?
Definition
musculocutaneous nerve
Term
What is the blood supply of the biceps brachii?
Definition
brachial artery
Term
What is the action of the biceps brachii?
Definition
flexes forearm at elbow joint and supinates forearm; flexes shoulder joint
Term
What is the origin of the coracobrachialis?
Definition
coracoid process of scapula
Term
What is the insertion of the coracobrachialis?
Definition
medial shaft of humerus
Term
What is the action of the coracobrachialis?
Definition
flexion and adduction of arm
Term
What is the nerve supply of the coracobrachialis?
Definition
musculocutaneous nerve
Term
What is the blood supply of the coracobrachialis?
Definition
brachial artery
Term
What is the origin of the brachialis muscle?
Definition
lower half of humerus
Term
What is the insertion of the brachialis?
Definition
ulnar coronoid process
Term
What is the action of the brachialis?
Definition
flexes forearm at elbow
Term
What is the innervation of the brachialis?
Definition
musculocutaneous nerve (C5,C6)
Term
What is the blood supply of the brachialis?
Definition
brachial artery
Term
What is the origin of the triceps brachii?
Definition
infraglenoid tubercle (long head); upper 1/2 posterior humerus (lateral head); lower 1/2 posterior humerus (medial head)
Term
What is the insertion of the triceps brachii?
Definition
olecranon process of ulna
Term
What is the action of the triceps brachii?
Definition
extend forearm at elbow
Term
What is the nerve supply of the triceps brachii?
Definition
radial nerve (C6,C7,C8)
Term
What is the blood supply of the triceps brachii?
Definition
profunda brachii artery
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