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Lab Quiz 2
only new muscles
36
Medical
Graduate
06/05/2013

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Cards

Term
Brachialis (Origin)
Definition
Lower half of humerus
Term
Brachialis (Insertion)
Definition
Coronoid process of ulna
Term
Brachialis (Action)
Definition
Prime elbow flexor
Term
Brachialis (Innervation)
Definition
musculocutaneous (twig of radial to lateral side)
Term
Biceps brachii (Origin)
Definition
Long head: Supraglenoid tubercle of scapula
Short head: coracoid process of scapula
Term
Biceps brachii (Insertion)
Definition
Radial tuberosity
Term
Biceps brachii (Action)
Definition
Felxion (Synergist) of forearm
Supination of forearm
Flexion of the arm
Stabilizes shoulder joint
Term
Biceps brachii (Innervation)
Definition
Musculocutaneous
Term
Brachioradialis (Origin)
Definition
humerus
Term
Brachioradialis (Insertion)
Definition
Radius (Distal, near styloid)
Term
Brachioradialis (Action)
Definition
Flexion of elbow
synergist with brachialis and biceps brachii
Term
Brachioradialis (Innervation)
Definition
Radial
Term
Coracobrachialis (Origin)
Definition
Scapula (coracoid process)
Term
Coracobrachialis (Insertion)
Definition
Middle of humerus (anteromedial)
Term
Coracobrachialis (Action)
Definition
Flexion and adduction of the arm
Term
Coracobrachialis (Innervation)
Definition
Musclocutaneous
Term
Triceps brachii (Origin)
Definition
Long head: infraglenoid tubercle of scapula
Medial head: posterior humerus (below and medial to radial groove)
Lateral head: Posterior humerus (above and lateral to radial groove)
Term
Triceps brachii (Insertion)
Definition
olecranon of ulna
Term
Triceps brachii (Action)
Definition
extends elbow and shoulder (long head) joints
Term
Triceps brachii (Innervation)
Definition
Radial (long head by axillary)
Term
Anconeus (Origin)
Definition
Lateral epicondyle of humerus
Term
Anconeus (Insertion)
Definition
olecranon of ulna laterally
Term
Anconeus (Action)
Definition
Extends elbow (synergist with Triceps brachii)
Term
Anconeus (Innervation)
Definition
radial
Term
Pronator teres (Origin)
Definition
medial epicondyle of humerus
Coronoid process of the ulna
Term
Pronator teres (Insertion)
Definition
Shaft of radius
Term
Pronator teres (Action)
Definition
Pronation of forearm (Palm forward to palm back)
Synergist to pronator quadratus
Term
Pronator teres (Innervation)
Definition
Median
Term
Pronator quadratus (Origin)
Definition
Ulna (distal)
Term
Pronator quadratus (Insertion)
Definition
Radius (distal)
Term
Pronator quadratus (Action)
Definition
Agonist for forearm pronation
resists separation of radius and ulna
Term
Pronator quadratus (Innervation)
Definition
Median and Anterior interosseous nerve (roots C8 and T1 with T1 being primary)
Term
Supinator (origin)
Definition
humerus
Term
Supinator (Insertion)
Definition
proximal radius
Term
Supinator (Action)
Definition
supinates forearm
Term
Supinator (Innervation)
Definition
posterior interosseous nerve (a continuation of the deep branch of the radial nerve)
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