Figure 13From: Evidence of a true pharyngeal tonsil in birds: a novel lymphoid organ in Dromaius novaehollandiae and Struthio camelus (Palaeognathae)Lymph nodule (Ln) in the follicular pharyngeal tonsil of D. novaehollandiae. The lymph nodule is surrounded by delicate connective tissue (black arrows) and a series of arterioles (A) are present in the inter-nodular lymphoid tissue (Ilt). Connective tissue (Ct).Back to article page