How does the Mozambique Spitting Cobra physically expel venom during its defensive spit?

Answer

Specialized muscles around venom glands contract powerfully through ducts near the fang tips

Specialized muscles surrounding the venom glands contract powerfully, forcing the venom out through small ducts situated near the tips of the front fangs.

How does the Mozambique Spitting Cobra physically expel venom during its defensive spit?
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