The Axilla and Brachial Plexus Flashcards Preview

Medicine, Year 2, Block 12 (Neurological, Neuromuscular, and MSK Diseases) > The Axilla and Brachial Plexus > Flashcards

Flashcards in The Axilla and Brachial Plexus Deck (17):
1

How are the medial, posterior and anterior borders of the Axilla defined?

Medially: Serratus anterior
Posteriorly: Subscapular muscles
Anteriorly: Pectoral muscles

2

What are the borders of the Apex of the Axilla?

By first rib
Posterior surface of clavicle
Superior margin of scapula

3

What are the contents of the Axilla?

Axillary vessels
Axillary lymphatics
Brachial plexus

4

What are the Axillary lymph node groups? 5 in total

- Lateral
- Subscapular
- Pectoral
- Central
- Apical

5

The Brachial Plexus has five anatomical sections - what are they?

"Real Texans Drink Cold Beer"

Roots
Trunks
Divisions
Cords
Branches

6

The Brachial Plexus includes what roots?

C5, C6, C7, C8, T1

7

What are the five branches of the Brachial Plexus? MAMRU

Musculoskeletal
Axillary

Medial
Radial
Ulnar

8

What motor components of the arm does the Radial nerve supply?

Extensors in the Dorsal compartment

9

What motor components of the arm does the Musculocutaneous nerve supply?

Flexors of upper arm in the Ventral compartment

10

What motor components of the arm does the Median nerve supply?

Flexors of the forearm and hand in the Ventral compartment

11

What motor components of the arm does the Ulnar nerve supply?

Flexors of the forearm and hand in the Ventral compartment (ulnar side)

12

What motor components of the arm does the Median nerve supply?

Flexors of the forearm and hand in the Ventral compartment (radial side)

13

What is Erb's Palsy?

Damage to the C5-C6 trunk of nerves (Upper Brachial plexus)

14

How is Erb's Palsy common caused?

Shoulder dystocia during birth

15

What is Klumpke's Palsy?

Palsy of the lower roots of the Brachial plexus

16

What is the name for the large point of venous access located under the clavicle for cannulation?

Subclavian vein

17

Draw the Brachial plexus

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