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Questions and Answers
What is the origin of the Pronator Teres muscle?
What is the nerve responsible for the Flexor carpi Radialis muscle?
What is the action of the Palmaris Longus muscle?
What is the insertion of the Flexor carpi ulnaris muscle?
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Which muscle is responsible for flexing and adducting the wrist?
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Which nerve is responsible for the Flexor carpi ulnaris muscle?
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What is the common origin of the Pronator Teres, Flexor carpi Radialis, and Palmaris Longus muscles?
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Which muscle has the most extensive origin?
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What is the common nerve responsible for the Flexor carpi Radialis and Palmaris Longus muscles?
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Which muscle is responsible for pronating the forearm?
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What is the insertion of the Flexor Digitorum superficialis muscle?
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Which nerve is responsible for the Flexor Digitorum superficialis muscle?
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Study Notes
Muscles of the Forearm
- Pronator Teres:
- Origin: Common flexor tendon from medial epicondyle of humerus and conoroid process of the ulna
- Insertion: Middle surface of lateral surface of the radius
- Action: Pronate the forearm
- Nerve: Median C6,7
Wrist and Finger Flexors
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Flexor Carpi Radialis:
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Origin: Common flexor tendon from medial epicondyle of humerus
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Insertion: Bases of second and third metacarpals
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Action: Flex the wrist or abduct the wrist
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Nerve: Median C6,7,8
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Palmaris Longus:
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Origin: Common flexor tendon of epiocondyle of humerus
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Insertion: Flexor retinaculum and palmar aponeurosis
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Action: Tense the palmar fascia
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Nerve: Median C6,7,8,T1
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Flexor Carpi Ulnaris:
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Origin: Humeral head - Common flexor tendon from medial epicondyle of humerus, Ulnar head - Posterior surface of proximal two thirds of ulna
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Insertion: Pisiform, hook of the hamate, and base of fifth metacarpal
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Action: Flex the wrist and Adduct the wrist
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Nerve: Ulnar C7,8,T1
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Flexor Digitorum Superficialis:
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Origin: Common flexor tendon from medial epicondyle of humerus, ulnar collateral ligament, coronoid process of ulna, interosseous membrane, and proximal shaft of radius
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Insertion: Sides of middle phalanges of second shaft of radius
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Action: Flex second through 5th fingers
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Nerve: Median C7,8,T1
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Description
Test your knowledge of the pronator teres, flexor carpi radialis, and palmaris longus muscles, including their origins, insertions, actions, and nerve supply. Learn about the anatomy of the forearm and how these muscles work together to facilitate movement. Identify the correct muscles and their functions.
