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

Introduction of quality attributes of food, Q. Introduction of Quality Attr...

Q. Introduction of Quality Attributes of Food? Seasonal fruits and vegetables are grown in plenty, and are available in their respective seasons in abundance. While choosing th

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

Explain the reinforcement of patch using fibrin glue, Explain the Reinforce...

Explain the Reinforcement of Patch using Fibrin Glue? Reinforcement of Patch using Fibrin Glue : In this technique Dacron graft is first sutured to the septum beyond i

Explain the coliforms - microbiological study of water, Explain the Colifor...

Explain the Coliforms - Microbiological Study of Water? These are widely used indicators which belongs to the family Enterobacteriaceae and make up about 10% of the intestinal

Similarities between chlorplasts and prokaryotic cells, What are the simila...

What are the similarities between chlorplasts and prokaryotic cells?

Determine lamellar compaction and remodeling, Lamellar compaction and remod...

Lamellar compaction and remodeling (6 to 18 weeks) A remodeling phase is initiated in which hematopoietic-derived osteoclastic cells form cutting cones will remove the establis

Episode of diarrhoea, An episode of diarrhoea can be acute (recent origin) ...

An episode of diarrhoea can be acute (recent origin) or chronic (extended duration and repeated episodes) in nature. You may recall reading in the Food Microbiology ans Safety Cour

Isomerization of dihydroxyacetone phosphate, Isomerization of dihydroxyacet...

Isomerization of dihydroxyacetone phosphate Isomerization of dihydroxyacetone phosphate: Triosephosphate isomerase interconverts dihydroxyacetone phosphate and glyceralde

Explain energy requirement in postoperative nutritional care, Explain the E...

Explain the Energy requirement in Postoperative Nutritional Care? Adequate calorie intake is critical for successful outcome of surgery and should be provided in the form of ca

Types of metamorphic changes, Types of Metamorphic Changes The proces...

Types of Metamorphic Changes The process of metamorphosis includes reactivation of the morphogenetic processes. The morphogenetic changes also the mode of causation of these

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages