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
Suprapleural membrane is a remnant of 
Select and explain. 
A. Scalenus anterior, B. Scalenus minimus, C. Subclavius, D. Scalinus medius
B: Scalenus minimus
Answer: B: Scalenus minimus 
Explanation: Suprapleural membrane/ Sibson's fascia is a remnant of Scalenus minimus.