Number of bones present in an arm is

Options

A. 30
B. 32
C. 35
D. 40 .

Answer

To determine the number of bones present in a human arm, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Major Bones in the Arm**:
- The arm consists of three main sections: the upper arm, forearm, and hand.

2. **Count the Bones in Each Section**:
- **Upper Arm**: The upper arm has one bone known as the **humerus**.
- **Forearm**: The forearm consists of two bones, which are the **radius** and **ulna**.

3. **Count the Bones in the Hand**:
- The hand is made up of several bones:
- **Wrist (Carpals)**: There are 8 carpal bones.
- **Palm (Metacarpals)**: There are 5 metacarpal bones.
- **Fingers (Phalanges)**: There are a total of 14 phalanges (3 in each of the four fingers and 2 in the thumb).

4. **Calculate the Total Number of Bones**:
- Adding these together:
- Humerus: 1
- Radius: 1
- Ulna: 1
- Carpals: 8
- Metacarpals: 5
- Phalanges: 14
- Total = 1 (humerus) + 2 (radius + ulna) + 8 (carpals) + 5 (metacarpals) + 14 (phalanges) = 30 bones.

5. **Conclusion**:
- Therefore, the total number of bones present in a human arm is **30**.

### Final Answer:
The number of bones present in an arm is **30**.

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