What is the peripheral nervous system, Biology

Define the Peripheral Nervous System (PNS)

Peripheral nervous system consists of cranial and spinal nerves.

There are twelve pairs of cranial nerves. They arise from brain. Most of them arrive from brain stem. There are the thirty one pairs of spinal nerves arising from spinal cord. They have been named and numbered according to the vertebral region they belong to. Thus there are eight pairs of cervical spinal nerves from C1 to C8, twelve pairs of dorsal nerves from D1 to D12, five pairs of lumbar spinal nerves from L1 to L5, five pairs of sacral nerves from S1 to S5 and one pair of coccygeal nerve.

 

Posted Date: 8/2/2013 3:07:33 AM | Location : United States







Related Discussions:- What is the peripheral nervous system, Assignment Help, Ask Question on What is the peripheral nervous system, Get Answer, Expert's Help, What is the peripheral nervous system Discussions

Write discussion on What is the peripheral nervous system
Your posts are moderated
Related Questions
What important changes will you find in the tissue of the fat person from those of a lean and thin person

Q. What is ST segment depression at rest? ST- segment depression has become severe, that is, 3 to 4mm or more in vigorous asymptomatic subjects. If the patient is known to have

Q. Pathophysiology of Chronic wasting disease? We all know that heart attack i.e. myocardial infarction is not the beginning but a last stage representing acute clinical manife

How Body size and composition affecting the BMR? Basal and resting energy expenditures are related to body size, being most closely correlated with the size of the fat-free mas

Visceral larva migrans Visceral larva migrans, also known as larval granulomatosis, is a clinical syndrome produced by the extra-intestinal migration of larval nematodes and i

Determine Materials for Separation of Amino Acids by Paper Chromatography? Petridishes (200 mm diameter) with lid, Whatman Chromatographic paper, brown paper, 500 ml separating

Deforestation - Degradation of Ecosystem The deforestation is a broad term. It means the removal/destruction of the forest cover or the vegetation of an area. It includes repe

what are the physical requirements to become a zoologist?

What is Burden of Rheumatic Heart Diseases? Although in the twenty-first century RHD has been eradicated in western countries, in India and other developing countries it contin

1. One of the greates challenges following the human genome project is to understand how genes are regulated and what functions they perform. a. Define the terms 'Transcriptomic