However, the structure of lymphatic tissues vary according to the particular type of lymphatic tissue or organ they form a part of - (a), (b) or (c) above, and possibly also it's location in the body-especially in the case of (c) Lymph (Fluid).
The exposition is the portion of a story that introduces important background information to the audience; for example, information about the setting, events occurring before the main plot, characters' back stories, etc.
1 Magnetic Plot Device: A plot device whose very presence causes things to happen. 2  Plot Coupon: An object necessary to continue or resolve the plot. 3  Plot Coupon That Does Something: A plot coupon that has uses beyond clearing a particular obstacle.  Sword of Plot Advancement: A plot device that can kill stuff.