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21 Cards in this Set
- Front
- Back
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Forearm Innervation |
Radial Nerve: All of the posterior forearm Median Nerve: Most of the anterior forearm Ulnar Nerve: Flexor Carpi Ulnaris and half of Flexor Digitorum Profunus |
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Which bone does pronation / supination? |
Radius - NOT the ulna |
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Brachial A. Breakdown |
Breaks down into the Radial and Ulnar A. Ulnar A. breaks down into the Common Interosseus A. Common Interosseus A. breaks down into the Anterior and Posterior A. The common inerosseus A. runs between the radius and ulna |
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General Properties of Forearm Flexors |
Origin: ME of humerus, radius, and ulna Insertion: Carpals, metacarpals, and phalanges Innervation: Mostly median Vascularization: Ulnar A., Radial A., and Anterior Interosseus A. Action: Flexion of the wrist, digits, and pronation Mostly 2-joint muscles 3 wrist flexors, 3 digit flexors, 2 pronators |
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General Properties of Forearm Extensors |
Origin: LE of humerus, radius, and ulna Insertion: Carpal bones, metacarpals, and phalanges Innervation: Radial N. Vascularization: Posterior Interosseus A. Action: Extension of the wrist, digits, and supination |
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Carpal Tunnel Information |
Median N. runs under the flexor retinaculum Will cut that to relieve pressure |
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Anatomical Snuff Box |
Triangle-shaped depression on the lateral wrist Lateral: Extensor Pollicis Brevis Medial: Extensor Pollicis Longus |
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Elbow Flexion Bone Related |
The coronoid process goes into the coronoid fossa |
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Important Forearm Ligaments |
Exist in the elbow joint Have radial and ulnar collateral ligaments Annular ligament (or radius): Holds the head of the radius in place The head isn't very big so it is often displaced, especially common in kids |
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Which side has more divisions? |
Posterior side has more divisions |
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Anterior and Posterior Vascularization |
Anterior: Radial and Ulnar A. and Anterior Interosseous A. Posterior: Posterior Interosseous A. |
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Pronator Teres |
Origin: ME and coronoid process Insertion: Middle radius Innervation: Median N. Vascularization: Ulnar A. Action: Pronates and flexes forearm |
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Flexor Carpi Radialis |
Origin: ME Insertion: Base of 2nd and 3rd MC Innervation: Median N. Vascularization: Ulnar A. Action: Flex the wrist and Abduct |
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Palmaris Longus |
Origin: ME Insertion: Palmar Aponeurosis Innervation: Median N. Vascularization: Ulnar A. Action: Flex the wrist and tighten the palmar aponeurosis |
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Flexor Carpi Ulnaris |
Origin: Olecranon and posterior ulna Insertion: Pisiform, hamate, and 5th MC Innervation: Ulnar N. Vascularization: Ulnar A. Action: Flex the wrist and Adduct |
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Flexor Digitorum Superficialis |
Origin: ME, proximal ulna, and anterior radius Insertion: Side of the 2nd - 5th middle phalanges Innervation: Median N. Vascularization: Ulnar A. Action: Flexes at the middle and proximal 2nd - 5th phalanges |
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Flexor Digitorum Profundus |
Origin: Anterior ulna and interosseous membrane Insertion: Distal 2nd - 5th distal phalanges Innervation: Median N. (lateral) and Ulnar N. (medial) Vascularization: Ulnar A. Action: Flexes the distal phalanges |
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Flexor Pollicis Longus |
Origin: Distal radius and interosseus membrane Insertion: Base of distal phalanx of thumb Innervation: Median N. Vascularization: Anterior Interosseus A. Action: Flexes the thumb |
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Pronator Quadratus |
Origin: Distal Ulna Insertion: Distal Radius Innervation: Median N. Vascularization: Anterior Interosseus A. Action: Pronates the forearm |
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Supinator |
Origin: LE and joint capsule Insertion: Proximal radius Innervation: Deep radial A. Vascularization: Action: Supinates the forearm Also biceps brachii and brachioradialis |
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Brachioradialis |
Innervated by the Radial N. Flexes the forearm at the elbow Pronates and Supinates? |
