USMLE Step 1 Review/Anatomy

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LOCATION OF THORACIC DUCT[edit]

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

BRACHIAL PLEXUS[edit]

Roots, Trunks, Divisions, Cords, Branches:

--> Radical Teachers Drink Cold Beers

  • Randy Travis Drinks Cold Beers.
  • Robert Taylor Drinks Cold Beer.
  • Red Trucks Drive Cats Nuts.
  • Read The Damn Cadaver Book.

ATTACHMENTS OF CHEST MUSCLES[edit]

  • 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[edit]

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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  • Oh Once One Takes The Anatomy Final, Very Good Vacations Are Had
  • 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.)
  • On Occasion Of Trader's Tea, Attractive Faces Are Girl Visitors. Say Hi.
  • 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)

  • On Occasion Our Trusty Truck Acts Funny - Very Good Vehicle Any-How

Deep Reflexes[edit]

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[edit]

  • 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[edit]

Temporal, Zygomatic, Buccal, Mandibular, Cervical

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  • Two Zebras Bit My Cookie
  • To Zanzibar By Motor Car
  • Ten Zulus Buggered My Cat
  • To Zionsville By Max's Car
  • Tappan Zee Bridge May Close

CERVICAL SPINAL NERVES[edit]

  • 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[edit]

  • 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[edit]

  • 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[edit]

  • "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.