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Pronator teres
associated nerves/vessels?
- - CFO and distal part of supracondylar ridge of humerus
- Deep origin from medial aspect of coronoid process
- --> maximum convexity of radius at midpoint of lateral axis
- - Median nerve
- - Pronates forearm
- - Median nerve passes between heads, ulnar artery lies deep to both, radial artery passes over point of insertion
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Flexor carpi radialis
- - CFO
- --> bases of 2nd and 3rd metacarpals
- - Median nerve
- - Flexes wrist with FCU, abducts wrist with radial extensors
- - Stabilises wrist in powerful finger movements
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Palmaris longus
- - CFO
- --> Palmar aponeurosis, superficial tendon to flexor retinaculum
- - Median nerve
- -Tenses palmar fascia, flexes wrist
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Flexor carpi ulnaris
- - CFO, medial margin of olecranon process
- Aponeurosis attaching to upper 2/3 of subcutaneous border of ulna
- --> Pisiform, extensions to hook of hamate (pisohamare ligament), base of fifth metacarpal (pisometacarpal ligament), anterior aspect of flexor retinaculum
- - Ulnar nerve
- - Adducts and flexes wrist
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Flexor digitorum superficialis
- - Humeral head: anterior aspect of medial epicondyle via CFO
- Ulnar head: coronoid process of ulna
- extended origin from radius
- --> Bases of middle phalanges (decussates)
- - Median nerve
- - Flexes fingers (and wrist)
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Flexor digitorum profundus
- - Ulna and adjacent interroseous membrane
- --> Base of distal phalanges (through decussation)
- - Radial 1/2: anterior interroseous nerve
- - Ulnar 1/2: ulnar nerve
- - Flexes distal interphalangeal joints, also proximal interphalangeal joints, metacarpophalangeal joints, wrist
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Flexor hallucis longus
- - Distal anterior aspect of radius
- --> Distal phalanx of thumb
- - Anterior interroseous nerve
- - Flexes thumb
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Pronator quadratus
- - Anterior surfaces of distal radius and ulna
- - Anterior interroseous nerve
- - Pronates forearm
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