Peripheral nervous system (pns), Science

Assignment Help:

Peripheral nervous system (pns):

Except for the  brain and the spinal cord,  the  rest of  the network  of  nerves and neurons is included in tha  peripheral nervous system, or PNS for short. This system links the brain andspinal cord to the rest of  the body. Any message that is sent to the brain or from it to the rest of body, travels along the peripheral nerves. The PNS consists of  12 pairs of  individual nerves called cranial nerves,  originating  from the brain hence called cranical nerves (from cranium, the  skull) and the 31 pairs of  spinal nerves that branch off from the spinal cord. Each  spinal nerve splits into  three components  soon after  leaving the spinal cord. One- branch passes to the skin and muscles of the  front of  the body;  a second branch leads to the skin and muscles of  the back; the third branch reaches the  internal organs. The first two branches carry sensory information to the  brain, and carry motor signals  from the brain to the muscles and glands. The  third branch forms the "autowmic  system" which governs actions  of  the internal organs that are mostly involuntary. If  you  look at Fig. again, you would be able to appreciate  the  vast network of  nerves that make up the peripheral nervous system.  

2114_Forebrain.png


Related Discussions:- Peripheral nervous system (pns)

Other visible light hazards-lasers, Other visible light hazards : Ordinary...

Other visible light hazards : Ordinary, visible light can present a hazard under certain conditions. You can burn paper by focussing the sun's rays using a small magnifying lens.

Critique of articles on VTE, Due Date: May 15, 2016 23:59:59 Max Poin...

Due Date: May 15, 2016 23:59:59 Max Points: 150 Details: Prepare a critical analysis of a qualitative study focusing on the problem statement, study purpose, research questi

Gravity, Why does gravity effect people?

Why does gravity effect people?

Explain in brief about the crop rotation, Explain in brief about the Crop R...

Explain in brief about the Crop Rotation 1.  Deep rooted legumes may be grown periodically over all fields. 2.  There is more continuous vegetative cover and probably less e

Explain the process of filtration - formation of urine, Explain the Process...

Explain the Process of Filtration - Formation of Urine The kidneys form urine in three phases: simple filtration, selective re-absorption and secretion. Let us begin with the p

Fst-1, Describe the factors which decide the broad area of scientific activ...

Describe the factors which decide the broad area of scientific activity?

Fire escapes precautions for fire prevention, Fire Escapes : When a fire b...

Fire Escapes : When a fire breaks out in a building, it is not unusual for people to panic. Sometimes flames can spread rapidly, especially if fanned by blow of air from open or b

Asteroid belt-rubble of the solar system, The Asteroid Belt-Rubble of the S...

The Asteroid Belt-Rubble of the Solar System: There is a gap of 547 million kilometers, between the orbits of Mars and Jupiter.  In this gap are thousands of  bodies made of ro

Astronomy and physical sciences, Astronomy and Physical Sciences:  Astr...

Astronomy and Physical Sciences:  Astronomy was used not only for working out the calendar, the dates of  the eclipses and for the determination of  time but also for casting h

Adolescence, Adolescence: Mind and Body, you have already studied that ...

Adolescence: Mind and Body, you have already studied that certain hormones are essential  for proper physical development of an  individual. Around the age of  12,  starts a pe

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd