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16 Cards in this Set
- Front
- Back
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What are the superior extensor muscles of the forearms?
What are innervations? |
All use words "Extensor!" All except #1 below are C7,8
1. carpi radialis longus (radial nerve 6,7) 2. carpi radialis brevis (deep branch of radial nerve) 3. digitorum (posterior interosseus nerve) 4. digiti minimi (posterior interosseus nerve) 5. carpi ulnaris (posterio interosseus nerve) All are innervated by radial nerve or deep branch of radial nerve |
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What do injuries to the posterior forearm muscles do?
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cause wrist drop
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What is the distal attachment and function of the following muscles?
a. extensor carpi radialis longus b. extensor carpi radialis brevis Any nerves we should remember? |
a. back of 2nd metacarpal, extend and abduct hand at wrist (radial)
b. back of 3rd metacarpal, same action (deep branch of radial nerve) |
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What is the distal attachment and function of the following muscles?
a. extensor digitorum b. extersor digiti minimi |
a. medial 4 fingers (always 3 sometimes 4) (posterior interosseous nerve C7, 8)
b. extensor of 5th finger (mini me)- extends 5th finger both at metacarpophalangel joint, and secondary at interphalangeal layer (posterior interosseus nerve) |
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What are the deep extensors of the forearm? What innervates each?
Which three are known as the outcropping muscles? |
All (c7,c8)
deep radial nerve 1. supinator posterior interosseus nerve (2-4 are outcropping) 1. extensor indicis 2. abductor pollicis longus 3. extensor pollicis brevis 4. extensor pollicis longus |
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IF someone has pain in their elbow region and they play tennis... what is most likely problem
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inflamed periosteum at the lateral epicondyle
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What is main thing located on hand that causes the IP (interphalangeal joints) to extend
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extensor expansion (Hood)
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Which deep posterior forearm muscles cause wrist abduction or thumb abduction directional movement?
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Abductor pollicis longus,
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Which posterior forearm muscle is known for allowing "hitchhiker pose"
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extensor pollicis longus
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What is the role of the extensor retinaculum?
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holds extensor tendons on dorsal wrist in place
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What are the arteries of the posterior forearm and hand?
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1. radial (associated with anatomical snuff box)
a. via deep palmar arch (hand) b. via dorsal carpal carch (hand) 2. common interosseus artery a. posterior interosseus artery (post. forearm) |
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What innervates the posterior forearm and tell what it becomes as it moves distally...
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Radial nerve- becomes deep radial nerve and becomes posterior interosseus nerve
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What is the anatomical snuff box?
What are the ulnar/ radial markers? What is the floor, roof, and what runs in this box of snuff? |
anatomical landmark
Ulnar- extensor pollicis longus Radial- extensor pollicis brevis, and abductor pollicis longus -Floor- scaphoid bone Roof- spuerficial radial nerve branches Runs- radial artery |
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Label A-Z or whatever there is
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a. extensor pollicis brevis
b. abductor pollicis longus c. scaphoid d. radial artery e. extensor pollicis longus |
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What do we have here and what are the labeling?
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a. superficial radial nerve
b. radial artery c. abductor pollicis longus d. extensor pollicis, brevis e. extensor pollicis longus |
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What is a ganglionic cyst? Why is the use of the word "ganglionic" incorrect?
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also known as a bible cyst, is a swelling that often appears on or around joints and tendons in the hand or foot.
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