4. Tissues & Histology

What part of connective tissue takes up most of the volume?

During a dissection, a student comes across a tissue they don't recognize. They note it makes the internal structure of the spleen (an organ of the immune system that filters blood) and when they examine a section under the microscope, they see long dark branched structures, small circular cells, and a significant amount of ECM. What type of tissue could this be?

Both epithelial and connective tissue are involved in transport of materials in the body. How do their functions differ?