Brachial Plexus Flashcards Preview

Gross Anatomy > Brachial Plexus > Flashcards

Flashcards in Brachial Plexus Deck (32):
1

Dorsal Scapular Origin & Segmentation

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

-So... (C5,C4)

2

Dorsal Scapular Innervation-2

-Rhomboids
-Levator Scapulae

3

Long Thoracic Origin & Segmentation

Posterior aspect of anterior rami of C5, C6, C7

4

Long Thoracic Innervation

Serratus Anterior

5

Suprascapular Origin & Segmentation

Superior Trunk

C4, C5, C6

6

Suprascapular Innervation-3

-Supraspinatous
-Infraspinatous
-Gelenohumeral Joint

7

Subclavian Nerve Origin & Segmentation

Superior Trunk

C4, C5, C6

8

Subclavian Nerve Innervation-2

-Subclavius
-Sternoclavicular Joint

9

Lateral Pectoral Origin & Segmentation

Side branch of lateral cord
C5, C6, C7

10

Lateral Pectoral Innervation

Pectoralis Major

11

Musculocutaneous Origin & Segmentation

Terminal branch of lateral cord

C5, C6, C7

12

Musculocutaneous Innervation

-Muscles of anterior compartment of arm
-Skin of lateral aspect of forearm

13

Median Origin & Segmentation

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

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

14

Median Innervation-2

-Muscles of anterior forearm
-Intrinsic muscles of hand

15

Medial Pectoral Origin & Segmentation

Side branches of medial cord
C8, T1

16

Medial Pectoral Innervation-2

-Pectoralis minor
-Sternocostal part of pectoralis major

17

Medial Cutaneous nerve of arm Origin & Segmentation

Side branches of medial cord
C8, T1

18

Medial Cutaneous nerve of arm Innervation

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

19

Median Cutaneous nerve of forearm Origin & Segmentation

Side branches of medial cord
C8, T1

20

Median Cutaneous nerve of forearm Innervation

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

21

Ulnar Nerve Origin & Segmentation

Larger terminal branch of medial cord
C7, C8, T1

22

Ulnar Nerve Innervation

Intrinsic muscles of hand
Skin of hand medial to ring finger

23

Upper Subscapular Origin & Segmentation

Side branch of posterior cord
C5

24

Upper Subscapular Innervation

Superior portion of subscapularis

25

Lower Subscapular Origin & Segmentation

Side branch of posterior cord
C6

26

Lower Subscapular Innervation

-Inferior portion of subscapularis
-Teres Major

27

Thoracodorsal Origin & Segmentation

Side branch of posterior cord
C6, C7, C8

28

Thoracodorsal Innervation

Latissimus Dorsi

29

Axillary Origin & Segmentation

Terminal branch of posterior cord
C5, C6

30

Axillary Innervation-4

-Glenohumeral joint
-Teres Minor
-Deltoid
-Skin over inferior part of deltoid

31

Radial Origin & Segmentation

Larger terminal branch of posterior cord
C5-T1

32

Radial Innervation

All muscles of posterior compartments of arm & forearm
Skin of posterior arm, and dorsum of hand lateral to ring finger