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30 Cards in this Set
- Front
- Back
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Pronator Teres |
O: Medial Epicondyle (common flexor tendon) & Coronoid Process Insertion: Lateral part of radius Innervation: Median n Actions: Pronates forearm; flexes forearm |
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Flexor Carpi Radialis |
Origin: Medial epicondyle (common flexor tendon) Insertion: base of 2nd metacarpal Innervation: Median N Action: abduct and flex hand |
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Palmaris longus |
Origin: Medial Epicondyle (common flexor tendon) Insertion: palmar aponeurosis Innervation: Median N Action: Flexes hand; tenses palmar aponeurosis |
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Flexor Carpi Ulnaris |
Origin: Medial Epicondyle (common flexor tendon) Insertion: hook of hamate @ 5th metacarpal Innervation: Ulnar n. Action: Adduct & flex hand |
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Medial Epicondylitis |
Golfer's Elbow Injury of common flexor tendon due to repeated wrist flexion |
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Flexor Digitorum Superficialis (intermediate layer)-- include testing |
Origin: Medial epicondyle (common flexor tendon) & Coronoid process Insertion: Shalt of phalanges 2-5 (thumb not included) Innervation: Median n Action: flex wrist, MP Joint and PIP joint of digits 2-5 Test: Flex one finger at PIP while holding other fingers in extended position |
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Flexor Digitorum Profundus (Deep layer)--include testing |
Origin: Ulna & interosseous membrane Insertion: Base of distal phalanges 2-5 Innervation: Anterior interosseous nerve (Median n) for digits 2-3 & Ulnar nerve for digits 4-5 Action: flex digits 2-5 at DIP Joints Test: Hold PIP joint extended and flex DIP joint |
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Jersey Finger Avulsion of flexor digitorum profundus tendon at insertion |
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Flexor Pollicis Longus (deep layer) |
Origin: Anterior surface of radius & Interosseous membrane Insertion: Digital Phalanx thumb Innervation: Anterior interosseous n. (median n) Actions: Flexes wrist and MCP joint & IP joint of thumb |
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Pronator Quadratus |
Origin: Distal 1/4 of anterior ulnar Insertion: Distal 1/4 of anterior radius Innervation: Anterior Interosseous nerve (median n) Actions: Pronates forearm |
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Which muscles are innervated by the median n (not including anterior interosseous n) |
Pronator teres Flexor carpi radialis Palmaris longus Flexor digitorum superficialis |
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Which muscles are innervated by the musculocutaenous n? |
Biceps brachii Brachialis Coracobrachialis |
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What muscles are innervated by the ulnar n? |
Flexor carpi ulnaris Flexor Digitorum Profundus (in digits 4-5) |
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What muscles are innervated by anterior interosseous n? |
Flexor digitorum profundus (digits 2-3) Flexor pollicis longus Pronator Quadratus |
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Biceps Brachii |
Origin: Short head: coracoid process Long head: supraglenoid tubercle Insertion: radial tuberosity & forearm fascia via bicipital aponeurosis Innervation: Musculocutaenous n Action: Supinates forearm, flexes arm and forearm when supinated |
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Brachialis |
Origin: Distal anterior humerus Insertion: Ulnar tuberosity & Coronoid process Innervation: Musculocutaneous n Action: Flexes forearm (primary) |
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Coracobrachialis |
Origin: Coracoid process Insertion: Medial surface of humerus Innervation: Musculocutaenous n Action: Adduction & flexion of arm; stabilizes glenohumeral joint |
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What cords make up median nerve? |
Lateral & Medial |
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Landmarks of Median n in the arm |
Brachial artery runs with it Runs through cubital fossa Deep to Bicipital aponeurosis & Median cubital vein |
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Pronator Syndrome |
Compression of median n between the two heads of pronator teres Reduced sense of touch (hypesthesia) to thumb- half of ring finger |
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Landmarks of median n in the forearm |
Passes btw 2 pronator teres heads Runs under flexor retinaculum Gives off a superficial palmar branch |
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Ulnar n is off what cord? |
Medial cord |
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Ulnar n anterior arm landmarks |
Runs medial of brachial artery Pierces medial intramuscular septum into posterior compartment Passes posterior to the medial epicondyle into the forearm |
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Ulnar n. anterior forearm landmarks |
Passes btw 2 heads of flexor carpi ulnaris Superficial to flexor retinaculum to enter Guyon's tunnel Branches to palmer cutaneous & dorsal cutaenous branches to skin in hand |
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Cubital tunnel syndrome |
Ulnar nerve is compressed between heads of flexor carpi ulnaris numbness and tingling in medial 1.5 digits impaired adduction of hand and during flexion hand would move to lateral side |
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Ulnar claw hand injury |
Injury of distal ulnar n patient cannot make a fist due to loss of function of flexor digitorum profundus loss of flexion of 4th and 5th digit |
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Musculocutenous n anterior arm/forearm land mark |
Arm: Passes through coracobrachialis and between biceps brachi & brachialis Forearm: pierces deep fascia to become the lateral cutaneous nerve of forearm |
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Injury to musculocutaneous n |
paralysis of coracobrachialis, bicep & brachialis loss of sensation on lateral surface of forearm (lateral cutaneous n of the forearm) flexion and supination or arm greatly weakened |
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Hand of benediction median n is severed around elbow partial paralysis of flexor digitorum superficialis |
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Anterior interosseous syndrome |
