system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which upper limb muscle spans across shoulder and elbow joint?
assistant
The correct answer is  Ans. is'b'i.e., Biceps brachiiMuscles that cross both shoulder and elbow are biceps (complete muscle, i.e. sho head and long head) and triceps (only long head crosses the shoulder).