Gross Anatomy #6 – Axilla (2009)

Question 1

Which of the following muscles does NOT border the axilla (axillary wall)?

a) Subscapularis
b) Serratus anterior
c) Pectoralis major
d) Teres major
e) Trapezius

Answer 1

e) Trapezius

Question 2

The axilla contains axillary lymph nodes, the axillary artery and nerve, the proximal
heads of biceps brachii and coracobrachialis, and the ____ of the brachial plexus.
a) Roots & Trunks
b) Trunks & Divisions
c) Divisions & Cords
d) Cords & Branches

Answer 2

d) Cords & Branches

Question 3

Which of the following axillary artery segments has two branches (thoracodorsal and
circumflex scapular artery)?
a) Supreme thoracic artery
b) Thoracoacromial artery
c) Lateral thoracic artery
d) Anterior circumflex humeral artery
e) Posterior circumflex humeral artery
f) Subscapular artery

Answer 3

f) Subscapular artery

Question 4

Which of the following is NOT a branch of the thoracoacromial artery?

a) Acromial artery
b) Clavicular artery
c) Scapular artery
d) Pectoral artery
e) Deltoid artery

Answer 4

b) Clavicular artery

Question 5

A patient presents with an infected cut on the medial side of her hand. Lymphangitis is
seen as a red streak along the path of the basilic vein. Infection drainage is likely
traveling to which of the following nodes?
a) Supratrochlear nodes
b) Humeral (lateral) axillary nodes
c) Infraclavicular nodes
d) Apical axillary nodes
e) Inguinal nodes

Answer 5

b) Humeral (lateral) axillary nodes

Question 6

Breast cancer will most likely metastasize through what lymph nodes, that initially
take about 75-80% of breast lymph drainage?
a) Pectoral (anterior) nodes
b) Humeral (lateral) nodes
c) Subscapular (posterior) nodes
d) Apical nodes
e) Supraclavicular nodes
f) Parasternal nodes
g) Abdominal nodes

Answer 6

a) Pectoral (anterior) nodes