<unk> is a specialized form of reticular connective<unk> in the lymphatic system that contains large numbers of lymphocytes.
  This<unk> type makes up the spleen, the thymus, and the tonsils, as well as visceral nodes, peyer's patches and lacteals which are all associated with mucous membranes of the gastro-intestinal tract.
Lymphatic tissues
Nervous tissue
Lymph vascular system
Lymph vessel
Lymphatic system
Fluid compartments
Enteric nervous system
Cardiac muscle