Notes on Peripheral Nervous System

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Postganglionic Sympathetic Neurons:

• Postganglionic sympathetic neurons arise from Chromaffin cells.

Neuropore Anomalies:

Rostral Neuropore Fails to Close:

• Anencephaly, polyhydraminos; increased AFP.

Caudal Neuropore Fails to Close:

• Spina bifidia; increased AFP.

Down syndrome:

• Reduced AFP.

Autonomic Nervous System:

• Innervates motor of smooth, cardiac, and glands.

• Two divisions: sympathetic (thoracolumbar) and parasympathetic (craniosacral).

Sympathetic:

• Smooth and cardiac, glands, thoracic viscera, foregut and midgut, pelvic viscera, and hindgut.

Parasympathetic:

• Glands and smooth muscle of head, viscera of neck, thorax, foregut, midgut, hindgut, and pelvic viscera of bladder and erectile tissue.

Additional Readings:

Basic Neurology

1. Peripheral Nervous System
2. Central Nervous System
3. The Ventricular System
4. The Spinal Cord
5. The Brain Stem
6. The Cerebellum
7. Visual Pathways
8. Diencephalon
9. Basal Ganglia
10. Cerebral Cortex
11. Sleep Disorders
12. Autonomic Nervous System
13. Cranial Nerves and Parasympathetic Ganglia
14. Cells of the Nervous System
15. Cerebrospinal fluid
16. Additional short notes on Cerebrum
17. Functions and Diseases of Cerebrum
18. Subcortical Grey Matter
19. Notes on The Spinal Cord
20. Regulation of Heart Rate by Autonomic Nervous System
21. Action Potentials, Axon Conduction, and Neuromuscular Junction
22. Types of Seizures

Neurology Videos

1. Video of Neurology Examination in a Clinical Setting

Medical Images

Useful Medical Images & Diagrams (link opens in a new window)

Related Topics

1. Nervous System Disorders
2. Histology of Nervous Tissue
3. Cranial Nerve Reflexes
4. Motor System Examination

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