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Anatomy UE
Flexors or Forearm
| Question | Answer |
|---|---|
| What muscle(s) are located in the anterior superficial compartment of the forearm? | pronator Teres, FCR, FCU, PL |
| What muscle(s) are located in the intermediate compartment of the forearm? | FDS |
| What muscle(s) are located in the deep compartment of the forearm? | FDP, PQ, FPL |
| The median nerve passes through the two heads of what muscle near the elbow? | pronator teres |
| The _____ _____ branch of the median nerve is given off in the region of the pronator teres. | anterior interosseus |
| What artery is located lateral to the FCR tendon in the wrist? | radial |
| This muscle is absent in 14% of the population. | PL |
| What nerve is located lateral the PL tendon in the wrist? | median |
| What nerve passes between the two heads of the FCU? | ulnar |
| The median nerve can be compressed by the arch of what muscle? | FDS |
| What muscles attach to the FDP tendons in the hand? | lumbricals |
| What muscle is the prime mover in pronation? | pronator quadratus |
| Are pronators of supinators stronger? | supinators |
| The anterior interosseus branch of the median nerve innervates what muscles? | FDP lateral part, FPL, pronator quadratus |
| The interosseus membrane is tensed in _________ and least tensed in _________. | supination, pronation |
| What creates the carpal tunnel? | flexor retinaculum (transverse carpal ligament) |
| The palmar cutaneus nerve branches off of what nerve? | median |
| Where does the palmar cutaneus nerve branch off of the median nerve? | right before it enters the carpal tunnel |
| What nerve passes through the medial intermuscular septum / Arcade of Struthers? | ulnar nerve |
| What nerve passes between the two heads of the FCU? | ulnar |
| What groove do the ulnar nerve and artery pass through in the hand? | guyon's canal |
| Where in the wrist is the radial artery located? | lateral to the FCR, and medial to the radial styloid process |
| What are the superficial veins of the anterior forearm? | cephalic, basilic, and intermediate vein(medial cubital) |
| Which extends more distally, radius or ulna? Which is shorter? | Radius is both shorter and extends more distally than ulna |
| How does the dorsal radial tubercle serve as a divider of? | 2nd and 3rd dorsal compartments |
| In what relation to the FCU are the ulnar artery and nerve? | Lateral |
| The FDS are split into superficial and deep tendons as they pass beneath the flexor retinaculum, which two are superficial and which two are deep? | 3&4 are superficial, 2&5 are deep |
| What are the responsibilities of the interosseous membrane of the forearm (4)? | Attach radius and ulna, distributes forces between radius and ulna, mm attachment site, allows for smooth forearm rotation |
| __________= fascia continuous w/ extensor retinaculum on the anterior surface. | Palmar carpal ligament |
| Where can the median nerve compression occur? | Two heads of pronator teres, arch of the FDS, beneath the bicipital aponeurosis |
| Where is the location of Guyon’s Canal? | Between pisiform and hook of hamate |
Created by:
txst fall 2009
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