Find the incorrect match w.r.t. number of spinal nerves arising from different parts of it

Options

A. Cervical nerves -7 pairs
B. Lumbar nerves- 5 pairs
C. Sacral nerves- 5 pairs
D. Coccygeal nerves - 1 pairs

Answer

To solve the question of finding the incorrect match regarding the number of spinal nerves arising from different parts of the spine, we can follow these steps:

### Step 1: Understand the Total Number of Spinal Nerves
There are a total of 31 pairs of spinal nerves in the human body. These are divided into different regions: cervical, thoracic, lumbar, sacral, and coccygeal.

### Step 2: Break Down the Number of Spinal Nerves by Region
- **Cervical Nerves**: 8 pairs
- **Thoracic Nerves**: 12 pairs
- **Lumbar Nerves**: 5 pairs
- **Sacral Nerves**: 5 pairs
- **Coccygeal Nerves**: 1 pair

### Step 3: Analyze the Options Given
Now we need to check the options provided in the question to identify which one is incorrect:
1. Cervical nerves: 7 pairs
2. Lumbar nerves: 5 pairs
3. Sacral nerves: 5 pairs
4. Coccygeal nerves: 1 pair

### Step 4: Compare Each Option with the Correct Numbers
- **Cervical Nerves**: The option states 7 pairs, but we know there are actually 8 pairs. This is incorrect.
- **Lumbar Nerves**: The option states 5 pairs, which is correct.
- **Sacral Nerves**: The option states 5 pairs, which is also correct.
- **Coccygeal Nerves**: The option states 1 pair, which is correct.

### Step 5: Identify the Incorrect Match
From the analysis, the only incorrect match is the cervical nerves, which are stated as 7 pairs instead of the correct 8 pairs.

### Conclusion
The incorrect match with respect to the number of spinal nerves arising from different parts is:
**Cervical nerves: 7 pairs (incorrect, should be 8 pairs)**.

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