How to remember the Brachial Plexus: - U-M Personal World ...



How to remember the Brachial Plexus: YOU YOUNG MERMAIDS LINE UP IN FRONT OF MY ULTRA TRIDENT

Draw the plexus first using the story:

Poseidon called all the mermaids around and said “You Young Mermaids, Line Up in front of my ULTRA Trident”

Once they had amassed he then yelled out “Robert Taylor Drinks Cold Beer”

YOU YOUNG MERMAIDS LINE UP in front of

Poseidon’s ULTRA TRIDENT (ULTRA (NOTE UTLRA in reality)) add 3 lines on top, 3 lines on bottom

So now we have two things left to do- Label the regions and divisions and of course the names of the nerves (see next page).

NOTE*** Story goes ULTRA Trident, but the spelling will be UTLRA.

So the UTLRA Trident is as follows:

U= Upper Subscapular Nerve

T= Thracodorsal Nerve

L=Lower Subscapular Nerve

R= Radial Nerve

A = Axillary Nerve

ULTRA Trident is BEHIND THE PLEXUS, thus forming the POSTERIOR Division of the Brachial Plexus.

So now you have drawn the Brachial Plexus, use “Robert Taylor Drinks Cold Beer” which gives us… Roots, Trunks, Divisions, Cords, and Branches

[pic]

* For the DIVISIONS: note that the initial mnomic has …..Line Up IN FRONT of Poseidens ultra trident……. So just like the story, the ULTRA Trident is BEHIND THE PLEXUS, thus forming the POSTERIOR Division of the Brachial Plexus.

Story for all the nerve names that come off the Brachial Plexus:

So all the mermaids went and decided to get high, but getting high is only for Towelie:

Nemonic is: LSD Made Many Mermaids Undergo Mass Misery

Starting off with the 3 branches that you added on top they are LSD

The 3 branches that you added on the bottom are Made Many Mermaids (MMM)

The three Anterior branches Undergo Mass Misery (UMM)

L=Lateral Pectoral Nerve

S= Suprascapular Nerve

D= Dorsal Scapular Nerve

M=Medial Pectoral Nerve

M=Medial Pectoral Cutaneous Nerve

M=Medial Antebrachial Cutaneous Nerve

U=Ulnar Nerve

M=Median Nerve

M=Musculocutaneous Nerve

*****FLIP PICTURE ON SIDE TO GET BELOW*****

LSD MMM UMM

U = Upper Subscapular

T= Thoracodorsal

L= Lower Subscapular

R=Radial

A=Axillary

L= Lateral Pectoral

S= Suprascapular

D= Dorsal Scapular

M=Medial Pectoral

M=Medial Brachial Cutaneous

M=Medial Antebrachial Cutaneous

U= Ulnar

M= Median

M= Misery

***The LONG THORACIC nerve comes off of the Roots of C5, C6, &C7. (it is not labeled or in this picture)

NERVE MUSCLES

U = Upper Subscapular SUBSCAPULARIS

T= Thoracodorsal LATISSIMUS DORSI

L= Lower Subscapular SUBSCAPULARIS AND TERES MAJOR

R=Radial POSTERIOR COMPARTMENT OF BRACHIAL AND ANTE.

A=Axillary DELTOID AND TERES MINOR

L= Lateral Pectoral PECTORALIS MAJOR AND MINOR

S= Suprascapular INFRASPINATUS & SUPRASPINATUS

D= Dorsal Scapular LEVATOR SCAPULAE, RHOMBOID MAJOR AND MINOR

M=Medial Pectoral PECTORALIS MAJOR AND MINOR

M=Medial Brachial Cutaneous cutaneous

M=Medial Antebrachial Cutaneous cutaneous

U= Ulnar Anterior Antebrachial compartment and some of hand

M= Median Anterior Antebrachial compartment and some of hand

M= Musculocutaneous Muscles of the anterior Antebrachial compartment

So how do we know which nerves go to which muscles in the Antebrachium and Hand?

Remember: ½ LOAF

[pic]

SO….

1. YOU YOUNG MEMMAIDS LINE UP IN FRONT OF MY UTLRA TRIDENT

2. ROBERT TAYLOR DRINKS COLD BEER

3. LSD MADE MANY MERMAIDS UNDERGO MASS MISERY

4. ½ LOAF

This is not my imagination running wild. It is adapted from my previous anatomy teacher’s cool antics for learning the brachial plexus and arm innervations.

Lifted from:

Dr. Mark Nielson

University of Utah

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1/2 LOAF

1st & 2nd

Lumbricals

Opponens Pollicus

Abductor Pollicus Brevis

Flexor Pollicus Brevis

THE 1 & ½ EXCEPTIONS

FLEXOR CARPI ULNARIS

ULNAR ½ OF FLEXOR DIGITORUM PROFUNDUS

ALL ANT COMP. OF ANTEBRACHIUM & RADIAL ½ OF FLEXOR DIGITORUM PROFUNDUS

Median Nerve

Ulnar Nerve

Hand

Antebrachium

ALL THE REST OF MUSCLES OF THE HAND NOT INNERVATED BY THE MEDIAN NERVE

6 ½ muscles

1 ½ muscles

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