To Be Certain the Anesthetic Solution Is Not Injected into a Blood

question 35

Multiple Choice

To be certain the anesthetic solution is not injected into a blood vessel,the dentist:

• A)uses an aspirating syringe.
• B)always aspirates before depositing any solution.
• C)uses a periodontal ligament syringe.
• D)both a and b.

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Definitions:

Pharynx

The muscular tube at the back of the nose and mouth that connects them to the esophagus.

Serous Fluid

A clear, watery fluid that lubricates the surfaces of membranes lining body cavities and organs.

Pleura

Thin layers of tissue that line the lungs and the inside of the chest cavity, providing lubrication necessary for the lungs to move smoothly during breathing.

Thorax

The chest cavity.