Olfactory and solitary chemosensory cells in the American alligator
Author Information
Author(s): Anne Hansen
Primary Institution: University of Colorado Health Sciences Center
Hypothesis
Do alligators possess different types of olfactory neurons and solitary chemosensory cells?
Conclusion
The nasal cavity of the American alligator contains two different chemosensory systems incorporated in the same sensory epithelium: the olfactory system proper and solitary chemosensory cells.
Supporting Evidence
- Almost the entire nasal cavity is lined with olfactory sensory epithelium.
- Two types of olfactory sensory neurons are present, differing in morphology and density.
- Solitary chemosensory cells are intermingled with olfactory sensory neurons.
Takeaway
Alligators have special cells in their noses that help them smell things both in water and on land. They have two types of smell cells that work differently.
Methodology
Electron microscopy and immunocytochemistry were used to examine the sensory epithelium of the nasal cavity.
Limitations
The study was conducted on juvenile alligators, and it remains to be shown whether the findings apply to fully mature alligators.
Participant Demographics
Three juvenile alligator heads were used for the study.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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