Which of the following terms describe human dentition ?
- Thecodont, Diphyodont, Homodont
- Pleurodont, Monophyodont, Homodont
- Thecodont, Diphyodont, Heterodont
- Pleurodont, Diphyodont, Heterodont
The Correct Option is C
Solution and Explanation
To determine which terms describe human dentition, let's analyze each option and understand the relevant concepts.
-
Thecodont,
Diphohydont, Heterodont:
- Thecodont: This term indicates that teeth are embedded in the jawbone. Humans have thecodont dentition since our teeth are set in sockets in the jawbones. - Diphyodont: This indicates the presence of two sets of teeth in a lifetime. Humans first develop milk teeth which are replaced by permanent teeth, thus we have diphyodont dentition. - Heterodont: This describes a dentition where different types of teeth exist, such as incisors, canines, premolars, and molars. Humans possess heterodont dentition.
Therefore, this option accurately describes human dentition.
-
Pleurodont, Monophyodont, Homodont:
- Pleurodont: This term refers to teeth that are fused by their sides to the inner part of the jawbone. This is not seen in humans. - Monophyodont: It describes having only one set of teeth in a lifetime, which doesn't apply to humans who have two sets. - Homodont: This implies all teeth are of the same type; human teeth are heterodont, not homodont.
Thus, this option does not describe human dentition.
-
Thecodont, Diphyodont, Homodont:
- While thecodont and diphyodont correctly apply to humans, the term homodont doesn't, since humans have different types of teeth.
This option is partially correct but includes an incorrect term for human dentition.
-
Pleurodont, Diphyodont, Heterodont:
- While diphyodont and heterodont are correct, pleurodont is not applicable as mentioned earlier.
This option includes both correct and incorrect terms for human dentition.
Based on the above analysis, the correct answer is: Thecodont, Diphyodont, Heterodont.
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