Nervous Systems
The nervous system can be separated into parts based on structure and on function:
Structurally, it can be divided into
- Central nervous system (CNS) and
- Peripheral nervous system (PNS)
Functionally, it can be divided into
- Somatic and
- Visceral
The CNS is composed of the brain and spinal cord, both of which develop from the neural tube in the embryo.
The PNS is composed of all nervous structures outside the CNS that connect the CNS to the body.
Elements of this system develop from neural crest cells and as outgrowths of the CNS. The PNS consists of the spinal and cranial nerves, visceral nerves and plexuses, and the enteric system.
Category: Medical & Health Sciences
Previous: ← Lymph nodes
Next: Meninges →
More from this Section
- Stigma
Stigma is a symbol (or a negative social label) of disgrace that affects a person's ... - Generalized anxiety disorder
Generalized anxiety disorder is the experience of long-term, persistent anxiety and worry. ... - Residential Treatment
Residential Treatment is the intensive and comprehensive psychiatric treatment in a campus-like ... - Common Iliac Arteries
The right and left common iliac arteries are the terminal branches of the aorta. ... - Internal Iliac Artery
...