martes, 27 de enero de 2015

Day 124 of 365

Day 124 of 365


Jun 4 2007

I spent a while on photoshop yesterday so today I decided to study while I was doing my 365 day/Class with Dave shot. Voila: The Brachial Plexus.
365 Days


1. Text – The subject of the photo must be text (letters and/or numbers in any language). The text must be photographed, not added in post-processing.
Take a Class With Dave and Dave


Memorizing the Brachial Plexus:

Each nerve is made up of several roots from the spinal cord and there is a handy way to memorize which roots make up which nerves. Take your left hand and name the thumb C5, then your first finger C6, all the way to your pinky, which is T1. Then say the following phrase:
3 Musketeers (hold up first 3 fingers – C5,6,7 make up the Musculocutaneous nerve)
Assassinated (hold up a "gun" with your hand – C5,6 make up the Axillary nerve)
5 Mice (C5-T1 make up the Median nerve)
5 Rats (C5-T1 make up the Radial nerve)

and 2 Unicorns (C8, T1 make up the Ulnar nerve)


Also, as the 5 nerves form, the brachial plexus mixes up all the parts and each time parts combine, the segments have different names. The mnemonic to memorize each segment is "Randy Travis Drinks Cold Beer:"

Roots (C5, C6, C7, C8. T1)

Trunks (Upper, Middle, Lower)

Divisions (Each Trunk divides into an Anterior and Posterior segment)

Cords (Lateral, Medial, Posterior)

Branches (Musculocutaneous, Axillary, Radial, Ulnar, and Median)


Finally, there are two lesions of the brachial plexus that love to be tested on the Boards:

1. Erb-Duchenne Palsy (waiter’s tip deformity) – this is due to a strong blow to the top of the shoulder, or a traumatic birth where the shoulder sticks in the birthing canal. This forces causes damage to the C5 and C6 parts of the brachial plexus (upper trunk) thus leading to a limp arm with forearm pronated and palm facing dorsally. (The deltoid, teres minor, supraspinatus, infraspinatus, biceps, and briachialis are paralyzed.)

2. Klumpke’s Palsy (claw hand) – this is due to a forcible pull of the arm upwards, like when grabbing onto something when falling (Yes, James Bond and most action heroes probably would have this palsy in real life). This damages C8 and T1 (the lower trunk) which results in the 4th and 5th fingers (mostly) being stuck in a flexed position and the thumb not able to abduct. (The intrinsic hand muscles innervated by the Ulnar nerve are paralyzed.)


That concludes today’s lesson.


Explore #304


Posted by evaxebra on 2007-06-05 01:26:54


Tagged: , Day 124 , 365 Days , cwd , cwdweek20 , cwd201 , goth , creepy , meat , texture , Brachial Plexus , Anatomy , Study , Medical School , Memorize , Randy Travis Drinks Cold Beer , 3 Musketeers Assassinate 5 Mice 5 Rats and 2 Unicorns , Erb-Duchenne , Klumpke , Palsy , cwdgs20 , cwdgs , evaxebra , Ewa , 365 , Pruska , Ewa Pruska , Self Portrait , Eva , Xebra




Day 124 of 365
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3 Musketeers Assassinate 5 Mice 5 Rats and 2 Unicorns, 365, 365 days, Anatomy, Brachial Plexus, creepy, cwd, cwd201, cwdgs, cwdgs20, cwdweek20, day, Day 124, Erb-Duchenne, Eva, evaxebra, Ewa, Ewa Pruska, goth, Klumpke, meat, Medical School, Memorize, Palsy, Pruska, Randy Travis Drinks Cold Beer, Self Portrait, Study, texture, Xebra
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