This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb, Subject name: Anatomy
Boundaries of upper triangular space include all except 
Select and explain. 
A. Teres minor, B. Teres major, C. Subscapularis, D. Triceps
C: Subscapularis
Answer: C: Subscapularis 
Explanation: Boundaries of upper triangular space is formed by : Superior- Inferior border of teres minor Lateral- Medial border of the long head of triceps brachii Inferior- Superior border of teres major REF: BD Chaurasia 7th edition Page no: 75. Figure :5.14,page no:69-Textbook of anatomy- upper limb & thorax - vishram Singh, 2nd edition