Unit 1: Lecture 11 Flashcards Preview

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Flashcards in Unit 1: Lecture 11 Deck (15):
1

Axillary Artery

Lateral extension of subclavian artery, and proximal root of brachial artery

2

Boundaries of axillary artery (medial and lateral)

medial: lateral border of 1st rib
lateral: lower border of the teres major muscle

3

How many parts of axillary artery?

3

4

Borders of different parts of axillary artery

First part: medial to pectoralis minor
Second part: inferior to pectoralis minor
Third part: distal to pectoralis minor

5

Branches of first part of Axillary Artery

highest thoracic artery (supplying 1st/2nd intercostal spaces, and upper part of serratus anterior)

6

Branches of second part of Axillary Artery

- thoracoacromial artery (pectoral muscles, subclavius, deltoid and acromion)
- lateral thoracic artery (serratus anterior)

7

Branches of third part of Axillary Artery

- subscapular artery (subscapularis and latissimus dorsi)
- anterior/posterior humeral circumflex arteries (joint capsule of G/H joint, & (post only) deltoid

8

Axillary vein

lies anterior to axillary artery (and outside axillary sheath)

9

Distally, what forms Axillary Vein?

Two brachial veins (lateral and medial; course with brachial artery) and one basilic vein (courses within superficial subcutaneous tissue)

10

Where do the brachial/basilic veins form the axillary vein?

At approximately the lower border of the teres major

11

Where does the axillary vein become the subclavian vein?

when it passes over the first rib

12

Brachial plexus

forms both the motor and sensory innervation for the upper limb

13

Anterior divisions of the upper and middle trunk form the...

lateral cord (C5 - C7)

14

Anterior divisions of the lower trunk forms the...

medial cord (C8 - T1)

15

Posterior divisions of all 3 trunks form the...

posterior cord (C5 - T1)