Human Nervous System – Structure, Function & Parts

Nervous System

Neural Crest

Introduction: It is ectoderm present at the junction of the neural tube and rest of the ectoderm.

Read And Learn More: General Histology Question And Answers

Neural derivatives:

1. Sensory neurons of the cranial ganglia V, VII, VIII, X, and XI.

2. Sensory neurons of the spinal dorsal root ganglia and their peripheral sensory receptors.

3. Satellite cells in all sensory ganglia.

4. Sympathetic ganglia and plexuses: Neurons and satellite cells.

5. Parasympathetic ganglia and plexuses: Neurons and satellite cells.

6. Enteric plexuses: Neurons and glial cells.

7. Schwann cells of all the peripheral nerves.

8. Medulla of the adrenal gland, chromaffin cells.

9. Carotid body type I cells (type II, satellite type cells).

10. Calcitonin: Producing (C cells)

11. Melanocytes.

12. Odontoblast.

13. Leptomeninges.

14. Head mesoderm, etc.