| 11. | Failure of head involution disrupts or deletes the salivary glands and pharynx.
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| 12. | The AB lineage gives rise to neurons, skin, and pharynx.
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| 13. | The MS lineage gives rise to pharynx, muscle, and neurons.
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| 14. | The buccal cavity empties through the pharynx into the oesophagus.
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| 15. | A one-way valve connects the pharynx to the excretory canal.
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| 16. | The guttural pouches connect the middle ear to the pharynx.
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| 17. | The pharynx is approximately one third of the body length.
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| 18. | Some additives may be added to reduce the irritation on the pharynx.
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| 19. | The pharynx is long, spanning through approximately 4-5 segments.
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| 20. | The pharynx is long, spanning through approximately 4 segments.
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