Download How to remember the Brachial Plexus

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
Poseidon’s ULTRA TRIDENT
MERMAIDS
(ULTRA (NOTE UTLRA in reality))
LINE UP in front of
add 5 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= Thoracodorsal 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
* For the DIVISIONS: note that the initial nemonic has …..Line Up IN FRONT of Poseidon’s 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:
Nemonic is: LSD SALT Made Many Mermaids Undergo Mass Misery
Starting off with the 6 branches that you added on top they are LSD SALT
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
S= Nerve to the Subclavius
A=Accessory Phrenic
LT=Long Thoracic
M=Medial Pectoral Nerve
M=Medial Brachial Cutaneous Nerve
M=Medial Antebrachial Cutaneous Nerve
U=Ulnar Nerve
M=Median Nerve
M=Musculocutaneous Nerve
*****FLIP PICTURE ON SIDE TO GET BELOW*****
LSD SALT MMM UMM
U = Upper Subscapular
T= Thoracodorsal
L= Lower Subscapular
R=Radial
A=Axillary
L= Lateral Pectoral
S= Suprascapular
D= Dorsal Scapular
S= Nerve to the Subclavius
A=Accessory Phrenic
LT=Long Thoracic
M=Medial Pectoral
M=Medial Brachial Cutaneous
M=Medial Antebrachial Cutaneous
U= Ulnar
M= Median
M= Musculocutaneous
Nerve
Upper subscapular nerve
Lower subscapular nerve
Thoracodorsal nerve
Radial nerve
Axillary nerve
Lateral pectoral nerve
Suprascapular nerve
Dorsal scapular nerve
Nerve to subclavius
Accessory phrenic nerve
Long Thoracic Nerve
Medial pectoral nerve
Medial brachial cutaneous nerve
Medial antebrachial cutaneous nerve
Ulnar nerve
Innervation
Subscapularis muscle
Subscapularis muscle and teres major muscles
Latissimus dorsi muscle
Muscles of the posterior brachial and
antebrachial compartments (13 muscles)
Deltoid and teres minor
Pectoralis major
Infraspinatus and supraspinatus muscles
Levator scapulae, rhomboideus major and
minor muscles
Subclavius muscle
Diaphragm
Serratus Anterior Muscle
Pectoralis major and minor muscles
Skin of the medial side of the brachium
Skin of the medial side of the antebrachium
Anterior Antebrachium
- The flexor carpi ulnaris and the ulnar half of
the flexor digitorum profundus
Hand Muscles
- All muscles of the hand not innervated by the
median nerve - the adductor pollicis muscles,
the hypothenar muscles, the 3rd and 4th
lumbrcals, the palmar interossei, and the
dorsal interossei
Median nerve
Anterior Antebrachium
- All of the anterior compartment muscles of
the antebrachium except the flexor carpi
ulnaris and the ulnar half of the flexor
digitorum profundus
Hand Muscles
- 1/2 LOAF – Intrinsic Hand Muscles
Musculocutaneous nerve
Muscles of the anterior brachial compartment
So how do we know which nerves go to which muscles in the Antebrachium and Hand?
Remember: ½ LOAF
ALL ANT COMP. OF
ANTEBRACHIUM &
RADIAL ½ OF FLEXOR
DIGITORUM
PROFUNDUS
Antebrachium
THE 1 & ½ EXCEPTIONS
FLEXOR CARPI ULNARIS
ULNAR ½ OF FLEXOR
DIGITORUM
PROFUNDUS
1 ½ muscles
6 ½ muscles
Median Nerve
1st & 2nd
Lumbricals
Opponens Pollicus
Abductor Pollicus Brevis
Flexor Pollicus Brevis
1/2 LOAF
Ulnar Nerve
Hand
ALL THE REST OF
MUSCLES OF THE HAND
NOT INNERVATED BY
THE MEDIAN NERVE
SO….
1. YOU YOUNG MERMAIDS LINE UP IN FRONT OF MY UTLRA TRIDENT
2. ROBERT TAYLOR DRINKS COLD BEER
3. LSD SALT MADE MANY MERMAIDS UNDERGO MASS MISERY
4. ½ LOAF
This is adapted from my previous anatomy teacher’s methods for learning the brachial plexus and arm
innervations.
From:
Dr. Mark Nielson
University of Utah