In human beings, the 16 teeth of each jaw consist of :

Options

A. 2 incisors, 4 canines,4 premolars and 6 molars
B. 4 incisors, 2 canines, 6 premolars, 4 molars
C. 4 incisors, 2 canines, 4 premolars and 6 molars
D. 2 incisors,4 canines, 6 premolars and 4 molars

Answer

To answer the question regarding the types of teeth in human beings, we can break it down into several steps:

### Step-by-Step Solution:

1. **Understand the Total Number of Teeth**:
- In human beings, there are a total of 32 teeth in the mouth, which includes both the upper and lower jaws.

2. **Identify the Number of Teeth in Each Jaw**:
- Each jaw (upper and lower) contains 16 teeth.

3. **Classify the Types of Teeth**:
- The 16 teeth in each jaw can be classified into four types:
- **Incisors**: There are 8 incisors in total (4 in the upper jaw and 4 in the lower jaw). These teeth are flat and are used for cutting food.
- **Canines**: There are 4 canines in total (2 in the upper jaw and 2 in the lower jaw). These are pointed teeth used for tearing food.
- **Premolars**: There are 8 premolars in total (4 in the upper jaw and 4 in the lower jaw). These teeth have a flat surface and are used for crushing and grinding food.
- **Molars**: There are 12 molars in total (6 in the upper jaw and 6 in the lower jaw). These are larger teeth with a broad surface for grinding food.

4. **Summarize the Composition**:
- Therefore, in each jaw, the composition of the 16 teeth is:
- 4 Incisors
- 2 Canines
- 4 Premolars
- 6 Molars

### Final Answer:
In human beings, the 16 teeth of each jaw consist of:
- 4 Incisors
- 2 Canines
- 4 Premolars
- 6 Molars