Different Patterns of Muscle Contraction in the Face Can Result

question 12

True/False

Different patterns of muscle contraction in the face can result in approximately 10,000 unique facial expressions.

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Definitions:

Nasolacrimal Duct

The duct that allows tears to drain from the eye into the nasal cavity, playing a key role in tear drainage and nasal moisture.

Lacrimal Puncta

Small openings in the inner corners of the eyelids, serving as the entrance to the nasolacrimal ducts for tear drainage.

Tears

The liquid produced by lacrimal glands to lubricate the eyes, containing water, electrolytes, proteins, and lipids.

Tarsal Glands

Sebaceous glands located on the eyelids, responsible for secreting oil that contributes to the tear film.