Hand Anatomy/Splints Word Scramble
L Y L Y P 2 L A U N A E U A E D L P 4
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| Question | Answer |
| 2 most important pulleys in flexor mechanism to prevent bowstringing? | A2 Pulley and A4 Pulley |
| What is the purpose of the carpal tunnel and dorsal compartment? | To prevent tendons from bowstringing |
| What is the function of the dorsal compartment? | prevents tendons from bowstringing |
| What finger is the hypothenar muscles responsible for? | small-finger/pinky side |
| What is the functional position for a splint? | 1. 15 to 30 degrees of wrist extension2. slight ulnar deviation3. 15 to 20 degrees of MCP flexion4. 10 degrees of PIP and DIP flexion5. palmar abduction of thumb (preserve webspace)6. extension of MP and IP of the thumb |
| What 4 muscles comprise the thenar musculature? | opponens pollicis, abductor pollicis, abductor pollicis brevis, flexor pollicis brevis |
| What finger is the thenar muscles responsible for? | thumb side |
| What are the muscles that originate and insert with the hand? | intrinsic hand muscles (thenar, hypothenar, central compartment muscles) |
| What are the 4 instrinsic muscles? | 1. Thenar Muscles2. Hypothenar Muscles3. Lumbrical Muscles4. Interossei Muscles |
| What is the function of the Lumbricals? | MCP Flexion and IP Extension |
| What nerve is the extrinsic flexors innervated by and what are the muscles? | median nerve median nerve1. flexor carpi radialis2. flexor carpi ulnaris3. palmaris longus |
| What are 3 nerves that innervate the forearm and hand? | medial, radial, and ulnar nerve |
| What is the function of the Interossei? | Extend the DIP and PIP |
| What 3 muscles comprise the hypothenar musculature? | flexor digiti minimi, abductor digiti minimi, opponens digiti minimi |
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