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Laboratory 33. Nasal Cavity
Step 1. Anterior and Posterior Openings of the Nasal Cavity

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The cadaveric head has been bisected, and both medial and lateral surfaces of a nasal cavity are visible.

Observe the anterior openings into the nasal cavities, the nostrils. The posterior openings of the nasal cavities, the choanae, open into the nasopharynx (Figure 33.3).