A derivative of neural Crest is
**Core Concept**
Neural crest cells are a group of multipotent cells that arise from the ectoderm during embryonic development. They are crucial in forming various tissues and structures in the body, including the peripheral nervous system, cartilage, and connective tissue.
**Why the Correct Answer is Right**
The correct answer is related to the neural crest's role in giving rise to the sympathetic nervous system, among other derivatives. The sympathetic nervous system is a part of the autonomic nervous system that controls involuntary functions such as heart rate, digestion, and blood pressure. Neural crest cells migrate to various locations in the body, where they differentiate into different cell types, including neurons, glial cells, and chromaffin cells. The chromaffin cells produce epinephrine and norepinephrine, which are essential hormones involved in the body's fight-or-flight response.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because while neural crest cells do contribute to the formation of the peripheral nervous system, they are not the primary source of the central nervous system.
**Option B:** This option is incorrect because the development of the heart is primarily attributed to the mesoderm, not the neural crest. However, neural crest cells do contribute to the formation of the cardiac outflow tract and the development of the aortic arches.
**Option C:** This option is incorrect because the development of the pancreas is primarily attributed to the endoderm, not the neural crest. However, neural crest cells do contribute to the formation of the pancreatic ducts and the islet cells.
**Clinical Pearl / High-Yield Fact**
Neural crest cells are a classic example of embryonic cells that undergo extensive migration and differentiation to form various tissues and structures in the body. Understanding the development and derivatives of neural crest cells is essential for diagnosing and treating congenital anomalies and tumors that arise from these cells.
**Correct Answer: D. Neural crest cells give rise to the sympathetic nervous system, among other derivatives.