Thursday, March 26, 2009

New License Plate Ordered! :) (Day 48)

Ain't she a 'beaut!  ;)

Now, let's try to justify this by naming all 8 muscles in the anterior forearm ...

1.  Pronator Teres
2.  Flexor Carpi Radialis 
3.  Palmaris Longus
4.  Flexor Carpi Unlaris
5.  Flexor Digitorum Longus
6.  Flexor Digitorum Superficialis (Split)
7.  Flexor Pollicus Digitorum Longus (Divide)
8.  Pronator Quadratus

OK, I got the first four correct, those are the superficial muscles...
There is no #5 - incorrect - - - and #6 is the only intermediate layer m. so, remove #5 and move #6 up to the 5th position ... #7 is incorrect and should read "Flexor Digitorum Profundus" and moved up to #6.  #7 Should be Flexor Pollicus Longus and #8 is fine :)

Correct Muscle List
1.  Pronator Teres
2.  Flexor Carpi Radialis 
3.  Palmaris Longus
4.  Flexor Carpi Unlaris
5.  Flexor Digitorum Superficialis (Split)
6.  Flexor Digitorum Profundus (Pierce)
7.  Flexor Pollicus Longus
8.  Pronator Quadratus

that was good - I just realized the key letter in #6 is P, for Pierce, which means the tendons of that muscle pierce (or split) through the tendons of #5.   ...OK, what nerves and arteries go with each muscle???

1.  Pronator Teres 
- median nerve 
- radial artery
2.  Flexor Carpi Radialis 
- median nerve 
- radial artery
3.  Palmaris Longus 
- median nerve 
- radial or ulnar artery
4.  Flexor Carpi Unlaris 
- ulnar nerve 
- posterior ulnar recurrent artery
5.  Flexor Digitorum Superficialis (Split) 
- median nerve 
- radial and ulnar artery
6.  Flexor Digitorum Profundus (Pierce) 
- medial part gets ulnar nerve
- lateral part gets anterior interosseus nerve
- ulnar and anterior interosseus artery
7.  Flexor Pollicus Longus
- anterior interosseus nerve via median nerve
- anterior interosseus artery
8.  Pronator Quadratus
- anterior interosseus nerve via median nerve
- anterior interosseus artery

Good stuff - I still need to learn all those arteries (and more) that run through the arm.  Regarding the Flexor Digitorum Profundus - we should take note of the word Profundus and remember the Latin derivation - Profundus sounds a lot like the word "Profound" and sometimes we have profound thinking which is deep thiinking - when we see the word profundus as part of the name of a name then we know that name refers to something deep - and with anatomy - deep is to be taken literal and since the word profundus appears as part of the muscle name (Flexor Digitorum Profundus) then we should be thinking that is a deep muscle and, indeed, it is as it is found in the deep, third layer of the anterior muscles of the forearm.

Anyway - Super Cool New License Plate!!!!   :D

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