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DPT Anatomy 2 > Brachial Plexus > Flashcards

Brachial Plexus Flashcards

1
Q

Nerve, Origin, Branches, Supply

A

Dorsal Scapular Nerve
* Origin Anterior ramus of spinal nerve C5
* Branches None
* Supply Rhomboid major and minor, Levator scapulae

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2
Q

Nerve and course

A

Dorsal Scapular Nerve
* Pierces middle scalene
* Descends between levator scap on one side and serratus posterior superior and posterior scalene on the other
* Runs along medial scapular region, along anterior border of rhomboids

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3
Q

Nerve, Origin and Supply

A

Long Thoracic n.
* Origin Spinal nerves C5, C6, C7
* Supply Serratus anterior

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4
Q

Nerve and Course

A

Long Thoracic n.
Course
* Distal and lateral
* Deep to clavicle AND superficial to 1st and 2nd ribs
* Along anterior thoracic wall in midaxillary line
* Ends on superficial surface of serratus anterior

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5
Q

Nerve, Origin and Branches

A

Suprascapular n.
* Origin Superior trunk of brachial plexus (C5-6)
Supply
* Motor: Supraspinatous and Infraspinatus
* Sensory: Glenohumeral and acromioclavicular joints

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6
Q

Nerve and Course

A
  • Transverses scapular notch (inferior to superior transverse scap lig) into supraspinous region of scap
  • Gives off branch to supraspinous muscle
  • Continues through greater scapular notch to reach infraspinatus fossa
  • Terminates within infraspinatus muscle
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7
Q

Nerve, origin, supply

A

Subclavian n
Origin Superior trunk of brachial plexus (C5-C6)
Supply Subclavius muscle

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8
Q

Nerve, branch, supply

A

Lateral Pectoral n
Origin Lateral cord of brachial plexus (C5-C7)
Branches Muscular branches
Supply Pectoralis major and some of pec minor

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9
Q

Nerve, branch, supply

A

Medial Pectoral n
Origin Medial cord of brachial plexus (C8-T1)
Branches Muscular
Supply Pec major and minor

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10
Q

Nerve A, origin, supply

A

Medial Brachial cutaneous
Origin Medial cord/Inferior trunk of brachial plexus (T1)
Supply Skin overlying anteror part of medial arm

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11
Q

Nerve B, origin, supply

A

Medial antebrachial cutaneous
Origin Medial cord of th brachial plexus (C8-T1)
Supply Skin overlying medial forearm and olecranon

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12
Q

Nerves, branch, supply

A

Upper Subscapular n
Origin Posterior Cord of brachial plexus (C5-C6)
Supply Upper portion of subscapularis muscle

Lower Subscapular n
Origin Posterior cord of brachial plexus (C5, C6)
Supply Lower portion of subscap, Teres Major

  • Course Both emerge to traverse anterior surface of subscap.
  • Lower ends in teres major muscle
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13
Q

Nerve, origin, supply

A

Thoracodorsal
Origin Posterior cord of brachial plexus (C6, C7, C8)
Supply Lat Dorsi

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14
Q

Nerve, course

A

Thoracodorsal
Course
* Emerges between upper and lower subscap nerves
* With throacodorsal artery along posterior axillary wall
* Deep into lat dorsi

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15
Q

Name A

A

Posterior cord of brachial plexus

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16
Q

Name B

A

Lower Subscapular n

17
Q

Name C

A

Thoracodorsal n

18
Q

Name D (the top one)

A

Upper subscapular n

19
Q

Name the bottom nerve (second D)

A

Long Thoracic n

20
Q

Nerve, origin, innervation

A

Axillary n
Origin posteror cord of brachial plexus (C5-C6)
Innervation
* Motor - Deltoid, Teres minor
* Sensory - glenohumeral joint, skin of deltoid region/upper arm

21
Q

Nerve, course

A

Axillary n
Course anterior to subscap m. Exits axilla with posterior circumflex humeral artery through quadrangular space

22
Q

Nerve, Origin, Branches

A

Radial n
Origin Posterior cord of brachial plexus (C5-T1)
Branches
* Posterior brachial cutaneous
* Inferior lateral brachial cutaneous
* posterior antebrachial cutaneous
* musclar branches
* deep branch of radial nerve
* superficial branch of radial nerve

23
Q

Nerve, Motor and Sensory Supply

A

Radial n
Motor Supply
* Triceps brachii
* Brachioradialis
* Extensor Carpi radialis longus
Sensory Supply
* Lower aspect and posterior surface of arm
* Central and posterior aspect of forearm
* Dorsal aspect of the radial 3-1/2 digits of the hand

24
Q

Nerve, Origin and Supply

A

Musculocutaneous n
Origin Brachial plexus (C5-C7)
Supply
* Corocobrachialis
* Biceps Brachii
* Brachialis

25
Q

Nerve, origin, branches

A

Median n
Origin Brachial plexus (C5, C6-C8, T1)
BranchesMuscular, anterior interosseus nerve

26
Q

Read That Damn Cadaver Book

A

Roots
Trunks
Divisions
Cords
Branches

27
Q

I AM SMAL

A

Inferior Trunks
Anterior divison becomes
Medial cord
Superior trunk and
Medial trunk’s
Anterior divisions become
Lateral cord

28
Q

Lets Memorize Muscles
(Lateral Cord nerves)

A

Lateral Pectoral
Musculocutaneous
Median

29
Q

PBAUM
(Medial Cord)

A

Medial** P**ectoral
Medial Brachial Cutaneous
Medial Antebrachial Cutaneous
Ulnar
Median

DPT Anatomy 2 (5 decks)

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