The spleen is divided by connective tissue into lobules with sinuses filled with what?

Question: The spleen is divided by connective tissue into lobules with sinuses filled with what?
- Keywords:
  connective tissue,
  lobule,
  sinus,
  spleen
Asked by Aherrera11 to Sian, Max, Lizzie, Ben on 6 Mar 2018.
- Ben Mulhearn answered on 6 Mar 2018:
  
  The sinuses are filled with blood. The spleen is like a big filter which blood passes through, and old red blood cells are removed from the circulation. The spleen also detects bacteria that may be in the circulation.

Question: The spleen is divided by connective tissue into lobules with sinuses filled with what?