This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper Extremity, Subject name: Anatomy
Lateral boundary of the cubital fossa is- 
Select and explain. 
A. Brachiradialis, B. Pronator teres, C. Flexor Carpi Radialis, D. Triceps
A: Brachiradialis
Answer: A: Brachiradialis 
Explanation: Ans. is 'a' i.e., Brachiradialis Cubital fossaLateral boundryBrachioradialisMedial boundryPronater teresBaseLine joining the two epicondyles of humerusApexPoint joining lateral and medial boundriesFloorBrachialis, supinatorRoofSkin, superficial fascia (containing medial cubital vein, lateral and medial cutaneous nerve of forearm), deep facia, bicipital aponeourosisCONTENTS* Median nerve* Brachial artery termination and begining of radial and ulnar arteries.* Biceps tendon* Radial nerve and* Radial collateral artery