Which of the Following Structures Is Not a Part of the Outer

question 40

Multiple Choice

Which of the following structures is not a part of the outer ear?

• A) The pinna
• B) The ear canal
• C) The eardrum
• D) The cochlea

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Definitions:

Chromosomal Abnormalities

Genetic defects involving changes in the number or structure of chromosomes, leading to various developmental and health problems.

Down Syndrome

A genetic disorder caused by the presence of all or part of a third copy of chromosome 21. It is characterized by intellectual disability and physical features such as a distinct facial appearance.

Mosaicism

A cause of Down syndrome in which cell division occurs unevenly, so that some cells have 45 chromosomes and some have 47. People with mosaic Down syndrome may have fewer physical characteristics, better speech, and higher intellectual functioning, depending upon the numbers of cells affected.

Dual Diagnosis

The co-occurrence of serious behavioural or psychiatric disorders in people with developmental disabilities.