This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Which of the following aery is a branch of the first pa of axillary aery? 
Select and explain. 
A. Lateral thoracic aery, B. Superior thoracic aery, C. Subscapular aery, D. Thoracoacromial aery
B: Superior thoracic aery
Answer: B: Superior thoracic aery 
Explanation: Superior thoracic aery is the only branch from the first pa of the axillary aery. The axillary aery is a continuation of the subclan aery and is divided into three pas. Branches from the second pa of the axillary aery are: Lateral thoracic aery Thoracoacromial aery Branches from the third pa of the axillary aery are: Subscapular aery Anterior circumflex humeral aery Posterior circumflex humeral aery