Sample of spinal cord is preserved in suspected poisoning with: JIPMER 10, 11
**Core Concept**
In forensic medicine, preserving a sample of the spinal cord is crucial for diagnosing certain types of poisoning. The spinal cord is a vital structure that can help identify the presence of toxins or poisons that affect the nervous system. This is particularly relevant in cases of suspected poisoning with substances like arsenic, which can cause damage to the spinal cord.
**Why the Correct Answer is Right**
The correct answer is related to the diagnosis of arsenic poisoning. Arsenic is a potent neurotoxin that can cause damage to the spinal cord, leading to symptoms like paralysis, numbness, and muscle weakness. In cases of suspected arsenic poisoning, preserving a sample of the spinal cord is essential for detecting the presence of arsenic in the body. The spinal cord contains a high concentration of arsenic, making it an ideal sample for analysis.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it does not relate to the diagnosis of arsenic poisoning. While other samples like blood or urine may be used for detecting arsenic, the spinal cord is not typically preserved for this purpose.
* **Option B:** This option is incorrect because it is not relevant to the diagnosis of poisoning. The brain is not typically preserved for forensic analysis in cases of poisoning.
* **Option C:** This option is incorrect because it is not specific to the diagnosis of arsenic poisoning. While other samples like hair or nails may be used for detecting heavy metals, the spinal cord is not typically preserved for this purpose.
**Clinical Pearl / High-Yield Fact**
In cases of suspected arsenic poisoning, preserving a sample of the spinal cord is essential for detecting the presence of arsenic in the body. This is because the spinal cord contains a high concentration of arsenic, making it an ideal sample for analysis.
**Correct Answer: B. Bone marrow.