Brachial Plexus Flashcards

1
Q

Dorsal Scapular Origin & Segmentation

A

Posterior aspect of anterior ramus of C5 w/ contribution from C4

-So… (C5,C4)

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2
Q

Dorsal Scapular Innervation-2

A
  • Rhomboids

- Levator Scapulae

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3
Q

Long Thoracic Origin & Segmentation

A

Posterior aspect of anterior rami of C5, C6, C7

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4
Q

Long Thoracic Innervation

A

Serratus Anterior

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5
Q

Suprascapular Origin & Segmentation

A

Superior Trunk

C4, C5, C6

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6
Q

Suprascapular Innervation-3

A
  • Supraspinatous
  • Infraspinatous
  • Gelenohumeral Joint
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7
Q

Subclavian Nerve Origin & Segmentation

A

Superior Trunk

C4, C5, C6

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8
Q

Subclavian Nerve Innervation-2

A
  • Subclavius

- Sternoclavicular Joint

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9
Q

Lateral Pectoral Origin & Segmentation

A

Side branch of lateral cord

C5, C6, C7

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10
Q

Lateral Pectoral Innervation

A

Pectoralis Major

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11
Q

Musculocutaneous Origin & Segmentation

A

Terminal branch of lateral cord

C5, C6, C7

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12
Q

Musculocutaneous Innervation

A
  • Muscles of anterior compartment of arm

- Skin of lateral aspect of forearm

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13
Q

Median Origin & Segmentation

A

Lateral root-terminal branch of lateral cord
-C6, C7

Medial root-terminal branch of medial cord
-C8, T1

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14
Q

Median Innervation-2

A
  • Muscles of anterior forearm

- Intrinsic muscles of hand

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15
Q

Medial Pectoral Origin & Segmentation

A

Side branches of medial cord

C8, T1

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16
Q

Medial Pectoral Innervation-2

A
  • Pectoralis minor

- Sternocostal part of pectoralis major

17
Q

Medial Cutaneous nerve of arm Origin & Segmentation

A

Side branches of medial cord

C8, T1

18
Q

Medial Cutaneous nerve of arm Innervation

A

Side of medial side of arm (To epicondyle of humerus and olecranon of ulna)

19
Q

Median Cutaneous nerve of forearm Origin & Segmentation

A

Side branches of medial cord

C8, T1

20
Q

Median Cutaneous nerve of forearm Innervation

A

Skin of medial side of forearm, as far distal as wrist

21
Q

Ulnar Nerve Origin & Segmentation

A

Larger terminal branch of medial cord

C7, C8, T1

22
Q

Ulnar Nerve Innervation

A

Intrinsic muscles of hand

Skin of hand medial to ring finger

23
Q

Upper Subscapular Origin & Segmentation

A

Side branch of posterior cord

C5

24
Q

Upper Subscapular Innervation

A

Superior portion of subscapularis

25
Q

Lower Subscapular Origin & Segmentation

A

Side branch of posterior cord

C6

26
Q

Lower Subscapular Innervation

A
  • Inferior portion of subscapularis

- Teres Major

27
Q

Thoracodorsal Origin & Segmentation

A

Side branch of posterior cord

C6, C7, C8

28
Q

Thoracodorsal Innervation

A

Latissimus Dorsi

29
Q

Axillary Origin & Segmentation

A

Terminal branch of posterior cord

C5, C6

30
Q

Axillary Innervation-4

A
  • Glenohumeral joint
  • Teres Minor
  • Deltoid
  • Skin over inferior part of deltoid
31
Q

Radial Origin & Segmentation

A

Larger terminal branch of posterior cord

C5-T1

32
Q

Radial Innervation

A

All muscles of posterior compartments of arm & forearm

Skin of posterior arm, and dorsum of hand lateral to ring finger