Describe the apical surface.
Select all that apply.
1. Secretions from goblet cells are released from the apical surface of a cell.
2. The apical surface is closest to or on the luminal surface.
3. The apical surface is closest to the base of the cell; therefore. it's closer to the blood supply contained in the neighboring connective tissue.
4. The apical surface is sometimes covered with cilia.
5. The apical surface directly contacts the neighboring epithelial cells.
