Axilla Flashcards
What are the two folds that create the axilla?
Anterior axillary fold (pectorals major) and posterior axillary fold (latissimus dorsi)
When does the subclavian artery become the axillary artery?
At the level of the first rib
When does the axillary artery become the brachial artery?
once it passes the Teres Major
What are the 6 branches of the axillary artery?
First region: Super Thoracic artery
Second region: Lateral Thoracic and Thoracoacromial trunk (more medial)
Third region: Subscapular artery, Anterior circumflex humoral, and Posterior circumflex humoral
Pectoralis minor is supplied by branches from where?
Thoracoacromial trunk
The lateral thoracic artery supplies blood to which area?
Breast
The sub scapular gives rise to which two arteries?
Circumflex superior (goes around scapula and anastomose with other arteries) Thoracodorsal
Which arteries go posterior and anterior to the humerus?
Anterior circumflex humoral and posterior circumflex humoral
upper part of the quadrangular space contains?
Teres minor and scapula
Medial part of the quadrangular space contains
Long head of triceps
Lower part of the quadrangular space contains?
Teres major
where does the axillary go thorough to exit out and go posteriorly?
Quadrangular space (to innervate the deltoid and trees minor
circumflex artery goes anterior or posterior?
posterior
Which part of the brachial artery goes posterior?
Deep brachial artery (blood supply to the triceps)
Which vein comes through the deltoid-pectoral triangle?
Cephalic vein
What is the other major vein of the arm beside the cephalic vein?
Basilic vein
Where do the basilica vein and cephalic vein meet?
at the median cubical vein
Is the brachial plexus is anterior or posterior?
Anterior
What are the two nerves that come from the roots of brachial plexus?
Dorsal Scapular nerve (c5)
Long thoracic nerve ((C5, C6, C7)
What are the two nerves that come from the trucks of the brachial plexus?
Suprascapular never (superior trunk) nerve ot subclavius (superior trunk)
What are the 4 nerves that comes from the level of the cord
Lateral Pectoral Nerve (Lateral cord)
Upper subscapular (posterior cord)
Thoracodorsal nerve (posterior cord)
upper subscapular nerve (posterior cord)
Medial pectoral nerve (Medial cord)
Medial brachial cutaneous Nerve (medial cord)
Medial antebrachial cutaneous nerve (medial cord)
The posterior cord give rise to which two nerves?
axillary nerve
Radial nerve
Lateral cord gives rise to which nerves?
Musculocutaneous nerve
Radial Nerve
the medial cord give rise to which nerves?
Ulnar nerve
and part of the median nerve
What are the 5 major nerves of the upper limbs?
Musculocutaneous nerve Median nerve Axillary nerve Radial nerve Ulnar nerve
Review slide 18-20
About the breast
