Briefly Explain the Cause of Down Syndrome and Why the Incidence

question 23

Essay

Briefly explain the cause of Down Syndrome and why the incidence rate increases with maternal age.

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Definitions:

Tympanic Membrane

Also known as the eardrum, this thin membrane vibrates in response to sound waves and transmits these vibrations to the bones of the middle ear.

Cochlea

is a spiral-shaped, fluid-filled inner ear structure responsible for converting sound vibrations into nerve impulses that are interpreted by the brain.

Vestibule

An entryway or chamber that can be the central part of the ear, or an area at the mouth's entrance.

Semicircular Canals

Three looping fluid-filled tunnels in the inner ear that are involved in maintaining balance and sensing head rotation.