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

Animal kingdom, i need information about speen of animals and stuff like th...

i need information about speen of animals and stuff like that for example a cheetah speed

Zoology, General characters of phylum protozoa

General characters of phylum protozoa

Acute complications of diabetes mellitus, Various acute complications of di...

Various acute complications of diabetes mellitus are described in this unit. Acute complications develop within a short period of time. These are due to improper treatment of diabe

What is the role of stomach in human body, What is the role of Stomach in h...

What is the role of Stomach in human body? The stomach serves both to digest food and to hold it so that it can be gradually released into the small intestine. Food stays in th

Accuracy of stress echocardiography, Q. Define Accuracy of Stress Echocardi...

Q. Define Accuracy of Stress Echocardiography? The accuracy of stress echo tests for the detection of coronary artery disease is expressed as the sensitivity and specificity of

Placement of implant with improper axial angulation, Placement of implant w...

Placement of implant with improper axial angulation Surgical placement of the implant improperly can lead to a prosthetic rehabilitation that compromises esthetics and the dist

Explain capillaries of the vascular system, Q. What are the capillaries of ...

Q. What are the capillaries of the vascular system? Capillaries are small blood vessels that perform exchange of substances between the tissues and blood the body Capillaries a

Define oven - nutritional biochemistry, Define Oven - Nutritional Biochemis...

Define Oven - Nutritional Biochemistry? Oven is a general term used to describe a chamber or enclosed compartment for heating, baking, or roasting food, as in a stove, or for f

Are viruses cellular beings, Are viruses cellular beings? Viruses are m...

Are viruses cellular beings? Viruses are measured as living beings but they do not have cellular structure. There is some argument regarding their classification as living b

Differentiate soil horizons and mong the soil groups, Differentiate soil ho...

Differentiate soil horizons and mong the soil groups To make precise differentiation among soil horizons and among the soil groups, the field data on soil morphology are suppor

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages