Unit
Review
Here is what we have learned from this unit:
- Head and neck cancers are often referred to as squamous cell carcinomas
because most head and neck cancers begin in the squamous cells that line
the structures found in the head and neck.
- Cancers of the head and neck are further identified by the area in
which they begin; these areas include oral cavity, salivary glands, paranasal
sinuses and nasal cavity, and pharynx, which consists of nasopharynx,
oropharynx, and hypopharynx.
- Head and neck cancers account for 3 percent of all cancers in the United
States.
- Head and neck cancers are more common in men and in people over age
50.
- Tobacco and alcohol use are the most important risk factors for head
and neck cancers, particularly those of the oral cavity, oropharynx,
hypopharynx, and larynx.
- Other risk factors for cancers of the head and neck include the following:
- Asbestos, nickel, and polyvinyl chloride exposure
- Mustard gas exposure
- Certain professions
- Poor oral hygiene
- Sun exposure
- Chronic irritation
- Direct contact with tobacco
- Certain ethnic origin
- Epstein-Barr virus exposure
- Familial clusters
- Radiation
True-False
Quiz
It's time to see how much you have learned from this unit. A true-false quiz
has been created to give you an opportunity to reinforce what you have learned.
Since the quiz is created as an incentive for learning, rather than an objective
evaluation of learning results, the score of the quiz will not be recorded.
Instead, feedback to your answer is provided instantaneously.
When you finish the questions in one set, click the Next button (a right-pointing
arrow icon located in the Title Bar) to proceed to the next page.
Please click here to take the
quiz.
