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The mouth and neck laid open. 1: The teeth. 3 and 4: Upper and lower jaws. 5: The tongue. 7: Parotid gland. 8: Sublingual gland. 9: Trachea (wind-pipe). 10 and 11: Esophagus (gullet). 12: Spinal column. 13: Spinal cord.

Mouth and Neck

The mouth and neck laid open. 1: The teeth. 3 and 4: Upper and lower jaws. 5: The tongue. 7: Parotid…

An illustration of a human mouth.

Human Mouth

An illustration of a human mouth.