ANATOMY

Supine vs. prone body position "Supine is on your spine.
Therefore, prone's the "other" one.
· Also, prone to suffocate in prone position.

Bifurcation vertebral landmarks · A bifurcation occurs on 4th level of each vertebral column:
C4: bifurcation of common carotid artery
T4: bifurcation of trachea
L4: bifurcation of aorta

Brachial plexus subunits "Randy Travis Drinks Cold Beer":
Roots
Trunks
Divisions
Cords
Branches

Bell's palsy: symptoms BELL'S Palsy:
Blink reflex abnormal
Earache
Lacrimation [deficient, excess]
Loss of taste
Sudden onset
Palsy of VII nerve muscles
· All symptoms are unilateral.

Radial nerve: muscles innervated "Try A Big Chocolate Chip Sundae, Double Dip Cherries And Peanuts Preferably Included":
· In order of their innervation, proximal to distal:
Triceps
Anconeus
Brachioradialis
ext. Carpi radialis longus
ext. Carpi radialis brevis
Supinator
ext. Digitorum
ext.Digiti minimi
ext. Carpi ulnaris
Abductor poll. longus
ext. Poll. brevis
ext. P poll. longus
ext. Indicis
· For the neighboring words that start with the same letter (eg: chocolate and chip), notice that the longer word in the mnemonic, corresponds to the longer of the two muscle names (ex: ext. carpi radialis longus and ext. carpi radialis brevis)

Carpal tunnel syndrome causes MEDIAN TRAP:
Myxoedema
Edema premenstrually
Diabetes
Idiopathic
Agromegaly
Neoplasm
Trauma
Rheumatoid arthritis
Amyloidosis
Pregnancy

Interossei muscles: actions of dorsal vs. palmar in hand "PAd and DAb":
The Palmar Adduct and the Dorsal Abduct.
· Use your hand to dab with a pad.

Flexor digitorum muscles: how they insert onto fingers · A little rhyme:
Superficialis Splits in two,
To Permit Profundus Passing through.


Serratus anterior: innervation SALT:
Serratus Anterior = Long Thoracic.

Rotator cuff muscles "The SITS muscles":
· Clockwise from top:
Supraspinatus
Infraspinatus
Teres minor
Subscapularis

BrachioRadialis:
Function: Its the Beer Raising muscle, flexes elbow, strongest when wrist is oriented like holding a beer.
Innervation: Breaks Rule: it's a flexor muscle, But Radial. (Radial nerve usually is for extensors: Recall BEST rule: B was for brachioradialis).
Important relation: Behind it is the Radial nerve in the cubital fossa.
Attachment: Attaches to Bottom of Radius.

Inversion vs. eversion muscles in leg Second letter rule for inversion/eversion:
· Eversion muscles:
pErineus longus
pErineus brevis
pErineus terius
· Inversion muscles:
tIbialis anterior
tIbialis posterior

Radial nerve: muscles supplied (simplified) "BEST muscles":
Brachioradialis
Extensors
Supinator
Triceps

Median nerve: hand muscles innervated "The LOAF muscles":
Lumbricals 1 and 2
Opponens pollicis
Abductor pollicis brevis
Flexor pollicis brevis
· Alternatively: LLOAF, with 2 L's, to recall there's 2 lumbricals.
· To remember that these are the Median nerve muscles, think "Meat LOAF".

Thigh: innervation by compartment "MAP OF Sciatic":
Medial compartment: Obturator
Anterior compartment: Femoral
Posterior compartment: Sciatic
· So all the thigh muscles in that compartment get innervated by that nerve.

Hand fractures: Colle's vs. Smith's

Colle's fracture: arm in fall position makes a 'C' shape. Smith's fracture: arm in fall position makes a 'S' shape.

Axillary artery branches

"Suzy Thompkins Loves Sex, Alcohol, and Pot": · From proximal to distal: Superior thoracic Thoracacromial Lateral thoracic Subscapular Anterior circumflex humeral Posterior circumflex humeral

Supination vs. pronation

"SOUPination": Supination is to turn your arm palm up, as if you are holding a bowl of soup. "POUR-nation": Pronation is to turn your arm with the palm down, as if you are pouring out whatever is your bowl.

Carpal bones

"She Looks Too Pretty; Try To Catch Her": · Proximal row then distal row, both lateral-to-medial: Scaphoid Lunate Triquetrium Pisiform Trapezium Trapezoid Capate Hamate

Radial nerve: muscles supplied (simplified)

"BEST muscles": Brachioradialis Extensors Supinator Triceps

Elbow: muscles that flex it

Three B's Bend the elBow: Brachialis Biceps Brachioradialis

Cubital fossa contents

"N-MAN": · From lateral to medial: Nerve Muscle Artery Nerve · Specifics are radial Nerve, biceps Muscle tendon, brachial Artery, median Nerve

Arm fractures: nerves affected by humerus fracture location

ARM fracture: · From superior to inferior: Axillary: head of humerus Radial: mid shaft Median: supracondular

Cubital fossa contents

"My Bottoms Turned Red": · From medial to lateral: Median nerve Brachial artery Tendon of biceps Radial nerve