Brachial Plexus Flashcards by Samuel Naftulin

Q

C5-6 Nerve Roots becomes

A

Superior trunk

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Q

C7 Nerve Root becomes

A

Middle trunk

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Q

C8-T1 Nerve Roots becomes

A

Inferior trunk

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Q

Anterior divisions of superior/middle trunks

A

Lateral cord

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Q

Anterior division of inferior trunk

A

Medial Cord

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Q

Posterior divisions of all three trunks

A

Posterior Cord

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Q

Lateral Cord Terminal Branches

A

Musculocutaneous Nerve, Median Nerve

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Q

Medial Cord Terminal Branches

A

Ulnar Nerve

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Q

Posterior Cord Terminal Branches

A

Axillary Nerve, Radial Nerve

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Q

Nerve to subclavius

A

innervates supraspinatus and infraspinatus

branching from superior trunk (C5 - C6)

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Q

Lateral pectoral Nerve

A

branching from lateral cord (C5 - C7)

innervates pectoralis major

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Q

Ulnar Nerve

A

branching from medial cord (C8 - T1)

Innervates a majority of intrinsic hand muscles

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Q

Medial pectoral Nerve

A

branching from medial cord (C8 - T1)

Innervates pectoralis minor and major

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Q

Medial cutaneous Nerve

A

Branching from medial cord (C8 - T1)
Forearm: C8
Arm: T1

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Q

Axillary Nerve

A

Branching from posterior cord (C5 -C6)

Innervates deltoid and teres minor

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Q

Radial Nerve

A

Branching from posterior cord (C5 - T1)

Innervates extensors in arm and forearm

Q

Upper subscapular Nerve

A

branching from posterior cord (C5 - C6)

Innervates subscapularis

Q

Most Alcoholics Must Really Urinate

A

Musculocutaneous, Axillary, Median, Radial, Ulnar

Q

Remember To Drink Cold Beer

A

Roots, Trunks, Divisions, Cords, Branches

Q

How many total branches come off the Lateral, Posterior, Medial Cords?

A

7

Q

How many divisions are there?

A

6 (anterior and posterior for each)

Q

How many trunks are there?

A

3 (Superior, Middle, and Inferior)

Q

How many terminal branches are there?

A

5 (MARMU)