AP BIOLOGY

ANIMAL PHYSIOLOGY

DIGESTION IN HUMANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Adult Humans have 28 teeth.
A
True
B
False
C
Not sure
Explanation: 

Detailed explanation-1: -Permanent (adult) teeth include: eight incisors, four canines, eight premolars and 12 molars (including four wisdom teeth). Because many adults have had their wisdom teeth removed, it is common for many people to have only 28 teeth.

Detailed explanation-2: -A full set of adult teeth will amount to 32 teeth in total. This includes the wisdom teeth, which grow in at the back of the mouth. These normally grow in much later and can be expected between 17 and 21 years. For some people wisdom teeth don’t grow in at all.

Detailed explanation-3: -Most adults have 32 teeth, once all of their teeth have come in. This will most likely happen by the time a person has reached between the ages of 12 and 14. Some children may not have lost the last of their baby teeth by this age, but this is an uncommon occurrence.

Detailed explanation-4: -Adult Teeth Most adults have 32 teeth, which is 12 teeth more than children! Among these 32 teeth are 8 incisors, 4 canines, 8 premolars, and 12 molars, including 4 wisdom teeth.

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