Question | Answer |
Pronator teres | Pronates forearm and weakly flexes elbow |
Flexor carpi radialis | flexes wrist and abducts it, weakly flexes elbow |
Palmaris longus | flexes wrist and tightens palmar aponeurosis |
Flexor carpi ulnaris | flexes wrist and adducts it, weak flexes elbow |
Flexor digitorum superficialis | Flexes middle phalanges of medial four digits; acting more strongly, it flexes proximal phalanges at MCP joint |
Flexor digitorum profundus | Flexes distal phalanges of medial four digits (fingers); also flexes of PIP's & MCP's ; aids in wrist flexion |
Flexor pollicis longus | Flexes phalanges of first digit(thumb) |
Pronator quadratus | Pronates forearm; deep fibers bind radius and ulna together |
Pronator teres | -2 heads: Medial epicondyle of humerus & ulnar coronoid process
-Middle of lateral surface of radius |
Flexor carpi radialis | -Medial epicondyle of humerus
-Base of 2nd metacarpal bone & slip to 3rd |
Palmaris longus | -Medial epicondyle of humerus
-Distal half of flexor retinaculum and palmar aponeurosis |
Flexor carpi ulnaris | -Humeral head: medial epicondyle of humerus Ulnar head: olecranon and proximal posterior border of ulna
-Pisiform bone; hook of hamate bone and 5th metacarpal bone via pisohamate/ pisometacarpal ligaments |
Flexor digitorum superficialis | - 2 heads:medial epicondyle of humerus, ulnar collateral ligament, and coronoid process of ulna. superior half of
anterior border of radius
-Bodies of the middle phalanges of medial four digits |
Flexor digitorum profundus | -Proximal three-fourths of medial and anterior surfaces of ulna and interosseous membrane
-Bases of distal phalanges of medial four digits |
Flexor pollicis longus | -Anterior surface of the radius and adjacent interosseous membrane
-Base of distal phalanx of thumb |
Pronator quadratus | -Distal fourth of anterior surface of ulna
-Distal fourth of anterior surface of radius |
The median nerve innervates the what muscles? | Pronator teres, Flexor carpi radialis, Palmaris longus, Flexor digitorum superficialis |
Flexor digitorum profundus | innervated by Median and Ulnar nerves |
Flexor carpi ulnaris | innervated by Ulnar nerve |
The Anterior interosseous nerve from median nerve innervates what muscles? | Flexor pollicis longus, Pronator quadratus |