Which of the following is derived basal lamina of neural tube-
**Core Concept:** The basal lamina is a specialized type of extracellular matrix found in various tissues, including the neural tube. It provides structural support and regulates cell behavior. The neural tube forms the central nervous system (CNS) and plays a crucial role in embryonic development.
**Why the Correct Answer is Right:** The correct answer refers to the **Neurons**, as they are derived from the neural tube. During embryonic development, the neural tube gives rise to two main types of neurons: sensory neurons (ganglion cells) and motor neurons (motor neurons). These neurons form the peripheral nervous system (PNS) and the central nervous system (CNS), respectively.
**Why Each Wrong Option is Incorrect:**
A. **Meninges:** The meninges are not derived from the neural tube but rather from the ectoderm. They are the three layers of connective tissue that surround the brain and spinal cord.
B. **Glial Cells:** While glial cells play a supportive role in the CNS, they are not directly derived from the neural tube. Glial cells originate from the neural crest and neuroepithelium.
C. **Muscle Cells:** Muscle cells, also known as myoblasts, are derived from the somites, not the neural tube. The neural tube contributes to the formation of the CNS, while muscle cells form the skeletal muscles.
D. **Neurons:** As mentioned earlier, neurons are indeed derived from the neural tube. However, this option is redundant as it is already covered in the explanation for the correct answer.
**Clinical Pearl:** Understanding the development of the neural tube and its derivatives is essential for understanding various congenital anomalies and disorders related to the CNS, such as spina bifida, which is a neural tube defect. This knowledge is crucial for diagnosing, treating, and preventing such conditions in clinical practice.