What Percentage of Spit Tobacco Users Have Gingivitis

question 31

Multiple Choice

What percentage of spit tobacco users have gingivitis?

• A) 10
• B) 25
• C) 33
• D) 50

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Definitions:

Coronary Sinus

A large vein on the heart's posterior that collects deoxygenated blood from the myocardium of the heart and directs it into the right atrium.

Trabeculae Carneae

Muscular ridges and columns found inside the ventricles of the heart, which help strengthen and support its walls.

Pectinate Muscles

Internal ridges of myocardial tissue in the atria of the heart, particularly pronounced in the right atrium.

Chordae Tendineae

Tendinous strands running from the papillary muscles to the atrioventricular valves.