USMLE Step 1 Review/Anatomy

LOCATION OF THORACIC DUCT

The duck is between two geese (duck = thoracic duct)
2 geese = azyGOUS and esophaGUS

BRACHIAL PLEXUS

Roots, Trunks, Divisions, Cords, Branches:

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ATTACHMENTS OF CHEST MUSCLES

A lady between two majors.
Pectoralis major attaches to lateral lip of bicipital groove.
Teres major attaches to medial lip of bicipital groove.
Latissimus dorsi attaches to the floor of bicipital groove.
The "lati" is between two "majors."
"Lateral is less, medial is more."
Lateral pectoral nerves goes through pectoralis major while medial pectoral nerve goes though both pectoralis major and minor

CRANIAL NERVES

I - olfactory, II - optic, III - oculomotor, IV - trochlear, V - trigeminal, VI - abducens, VII - facial, VIII - acoustic (vestibulocochlear), IX - glossophrayngeal, X - vagus, XI - accessory, XII - hypoglossal

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Our Only Object To Touch And Feel Virgin Girls Vagina And Hymen-----is to learn cranial nerve names.
You have I nose. You have II eyes. (I - Olfactory; II - Optic)

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OLd OPie OCasionally TRies TRIgonometry And Feels Vague GLOomy And HYPOactive (letters in capital have similar in CN's.)
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Choirs Of Silly Singers Sing Rhyms Out Side In Imertinent Jollienss Joyfully Jogging Home (to remember exits of cranial nerves (+2 for the 3 branches of CN:V)
Oh Oh Oh To Touch And Feel Various Girls Very Attractive Hair(Cranial Nerves)
Oh Oh Oh To Touch And Feel A Girl's Vagina, AH! (Cranial Nerves)

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Deep Reflexes

Biceps (C5-6) elbow flexion

Brachio-radialis (C5-6) elbow flexion & supination

Triceps (C7) elbow extension

Patellar (L3-4) knee extension = knee jerk

Achilles (S1) plantar flexion = ankle jerk

LR6 SO4 R3

LR6 - Lateral Rectus --> CN VI Abducens
SO4 - Superior Oblique --> CN IV Trochlear
R3 - The Remaining 4 eyeball movers --> CN III Occulomotor
or LAST: LA = Lateral Rectus - Abducens Nerve, ST = Superior Oblique - Trochlear Nerve

BRANCHES OF FACIAL NERVE

Temporal, Zygomatic, Buccal, Mandibular, Cervical

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Ten Zulus Buggered My Cat
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Tappan Zee Bridge May Close
Two Zombies Bit My Cranium

CERVICAL SPINAL NERVES

c345 keep the diaphragm alive (innervation of diaphragm by the phrenic nerve)
c5-6-7 raise your arms to heaven (nerve roots of long thoracic nerve innervate serratus anterior and if severed you see "winging" of the scapula)

INNERVATION OF PENIS

Parasympathetic causes erection. Sympathetic causes ejaculation. "Point and Shoot."
"S2, 3, 4 keep the penis off the floor"
Innervation of the penis by branches of the pudendal nerve, derived from spinal cord levels S2-4

AORTIC BRANCHES

ABC'S
Aortic arch gives off the Brachiocephalic trunk, the left Common Carotid, and the left Subclavian artery

Order of things in the Femoral Triangle

"N(AVEL)" (From Lateral To Medial)
Nerve, Artery, Vein, Empty space, Lymphatics

NOTE: Parenthesis includes things contained in the femoral sheath.

LOCATION OF INQUINAL HERNIAS with Reference to the Inferior Epigastric Arteries:

"MDs don't LIe" (Medial- Direct, Lateral - Indirect): Direct inquinal hernias are Medial while Indirect hernias are Lateral to the inferior epigastric arteries

Addendum Module: More Through Anatomy Notes - This page is just temporary until the additional information in that page can be better organized over multiple chapters/sections along with the rest of this book.