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. Author manuscript; available in PMC: 2010 Dec 1.
Published in final edited form as: Cryobiology. 2009 Aug 22;59(3):250–257. doi: 10.1016/j.cryobiol.2009.07.012

Fig. 1.

Fig. 1

SEM of ovine tracheal epithelial cells cultured under submerged conditions for 3 weeks. The cell surfaces are covered with microvilli. Arrow indicates some short cilia which were occasionally found in some areas. However, no mature cilia were found (bar=10µm).