What do you mean by nervous system, Biology

Assignment Help:

Q. What do you mean by Nervous System?

Structural Organization: CNS + PNS

Functional Organization: only concerned with PNS

Sensory (Afferent) -> CNS

Motor (Efferent) <- CNS

Nervous Tissue:

Two principal tissues: Neurons and Supporting Cells (Neuroglia)

Neurons: Highly specialized to transmit messages (impulses). Vary greatly in shapes, however share common features. These include Dendrites, Cell Body, Axons, and Axon Terminals
Glia: Different types of cells that generally support, insulate, and protect the delicate neurons. Note that glia still divide during adult life (Gliomas/brain tumors). Some of these cells form the myelin layer, others make CSF.

Related Discussions:- What do you mean by nervous system

Define about the spectroscopy- colorimetry, Define about the Spectroscopy- ...

Define about the Spectroscopy- colorimetry? Spectroscopy, therefore, is the study of the absorption and emission of radiation by matter. Absorption Spectroscopy is usually used

Does thermal inversion occur in the winter or in the summer, Does thermal i...

Does thermal inversion occur in the winter or in the summer? Pollutant low altitude thermal inversion happens in the winter. In this period of the year the sun heats the soil l

Genetics Problems, Andalusian chickens may be either black, white, or gray....

Andalusian chickens may be either black, white, or gray. The gene for black is not dominant over the gene for white, nor is the gene for white dominant over the gene for black. Whe

Cromosome jumping, what is cromosome jumping

what is cromosome jumping

Streptococcal antibody test, In about 80 per cent of ARF patients, ASO titr...

In about 80 per cent of ARF patients, ASO titre is significantly raised. ASO titres vary with age, geographical area and other fevers, which influence frequency of streptococcal in

Could she ever have a child with blood type o, a) Indicate the blood types ...

a) Indicate the blood types possible from the mating of a male who is blood type O with a female of blood type AB. b) Could a female with blood type AB ever produce a child with bl

How much salt is in the human body, How much salt is in the human body? ...

How much salt is in the human body? 50 Kilo human has about 7 tablespoons of salt inside there body.

Define shell fish as a rich source of protein, Define Shell Fish as a rich ...

Define Shell Fish as a rich source of protein? Information on shellfish is fragmentary and incomplete. In shell fish, the shell comprises of a large portion of live weight of t

What is cytosolic cyclic amp, What is cytosolic cyclic AMP Healthy Pers...

What is cytosolic cyclic AMP Healthy Person P takes a new drug that is a member of a drug family that results in constant levels of cytosolic cyclic AMP (cAMP) in one and only

How are mineral salts-water and food transported to plant, How are mineral ...

How are mineral salts, water and food (sugar) transported throughout the plant? Mineral salts, Water and sugar are transported throughout the plant through conductive vessels f

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages