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Anatomy Block-4 Muscles-Arm
AUC
14
Anatomy
Graduate
03/27/2011

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Term
Anterior Brachium
Definition
Biceps Brachi
Coraco Brachialis
Brachialis

Muscular Cutaneous n
Term
Biceps Brachi
Definition
Innervation: MusculoCutaneous
Insertion: Radial tuberosity, bicippital
Origin:
Medial: short head to coracoid
Lateral: Long to supraglenoid tubercle.
Action: Supinates forearm, Flexes elbow
Term
Corachobrachialis
Definition
Innervation: Musculocutaenous
Insertion: medial humerous
Origin: coracoid process(scapula)
Action: Adducts humerus, Flexion of glenohumeral joint. (Thumbs up)
Term
Brachialis
Definition
Innervation: musculocutaneous
Insertion: Coronoid process and tuberosity of ulna.
Origin: anterior humerus. distal half
Action: flexes elbow joint
Term
Triceps Brachii
Definition
Innervation: Radial N
Insertion: Olecranon Process(Ulna)
Origin:
Long head Infraglenoid tubercle-scapula
Lateral/medial: Posterior Humerous
Action: Extend forearm. Long head adducts shoulder
Term
Anterior Compartment of Forearm.

medial to lateral UPRPB
D
Definition
Flexor Carpi Ulnaris: ulnar n
Palmaris Longus: median
Flexor Carpi Radialis: median n
Pronator Teres: median n
Brachioradialis: Radial n

Digitorum Superficialis: median n

Pronator quadratus - medial n
flexor digitorum profundus - medial n
Term
Brachioradialis
Definition
Innervation: Radial n
Insertion: radius styloid process
Origin: Lateral supracondylar ridge
Action: Flexion of forearm

Beer drinker muscle. Capable of suppination or pronation.
Term
Palmaris Longus
Definition
Innervation: median
Insertion: palmar aponeurosis
Origin: medial epicondyle(humerus)
Action: wrist flexor
Term
Flexor Digitorum Superficialis
Definition
Innervation: Median n
Insertion: base of middle phalnges
Origin: medial epicondyle
Action: Flexor of fingers(proximal interphalangeal)
Term
Flexor Carpi Radialis
Definition
Innervation: Median
Insertion: bases of 2nd/3rd metacarpals
Origin: medial epicondyle
Action: Flexion and abduction at wrist
Term
Flexor Carpi Ulnaris
Definition
Innervation: Ulnar n
Insertion: Pisiform
Origin: medial epicondyle
Action: flexion/adduction of wrist
Term
Pronator Teres
Definition
Innervation: Median n
Insertion: lateral side of radius
Origin: median condyle
Action: pronation of forearm(pulls radius on top of ulnar)
Term
Flexor Digitorum Profundus
Definition
Innervation: Ulnar(4,5) Median (2,3)
Insertion: base of distal phalanges
Origin: ulna
Action: Flex interphalangeal joints, hand
Term
Pronator Quaratus
Definition
Innervation: Median Nerve
Insertion: lateral/anterior radius
Origin: medial/anterior radius
Action: Pronates the forearm

Pulls the radius on top of the
ulna
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