Evidence of a true pharyngeal tonsil in birds: a novel lymphoid organ in <it>Dromaius novaehollandiae</it> and <it>Struthio camelus</it> (Palaeognathae)
<p>Abstract</p> <p>Background</p> <p>Tonsils are secondary lymphoid organs located in the naso- and oropharynx of most mammalian species. Most tonsils are characterised by crypts surrounded by dense lymphoid tissue. However, tonsils without crypts have also been recogni...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2012-08-01
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| Series: | Frontiers in Zoology |
| Subjects: | |
| Online Access: | http://www.frontiersinzoology.com/content/9/1/21 |