SP-20 is located in which intercostal space?

• A. Fifth intercostal space
• B. Second intercostal space
• C. Third intercostal space
• D. Sixth intercostal space

Answer: (B)

SP-20 sits on the chest wall along the spleen channel, specifically in the second intercostal space. Intercostal spaces are named by the rib above them, so the space between the second and third ribs is the second intercostal space. This upper-chest location aligns with how SP points are mapped across the thorax, placing SP-20 in that second space.