Answer:
Medullary sinuses contain histiocytes (immobile macrophages) and reticular cells. A lymph node contains lymphoid tissue, i.e., a meshwork or fibers called reticulum with white blood cells enmeshed in it. The regions where there are few cells within the meshwork are known as lymph sinus.
Explanation:
Answer:
In Stranger Things 4, what I think is going to happen? Well, I think Season 4 is likely to concentrate on Eleven and how, or whether, she ever gets back her abilities. El loses her abilities at the end of season 3, after the fight at the mall, and she can no longer shift objects with her mind, or find people in the void.
Umbilical chord...............
Respiratory system hope i helped best of luck :)