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Organisation of cells animal tissues (view source)
Revision as of 01:52, 8 August 2014
, 01:52, 8 August 2014→Concept #4
#Activity No #4 [[Animal_tissues_Fluid_connective_tissue]]
#Activity No #4 [[Animal_tissues_Fluid_connective_tissue]]
==Concept #4==
==Concept #4 Nerve tissue==
===Learning objectives===
===Learning objectives===
===Notes for teachers===
===Notes for teachers===
Nervous tissue is the main component of the two parts of the nervous system; the brain and spinal cord of the central nervous system (CNS), and the branching peripheral nerves of the peripheral nervous system (PNS), which regulates and controls bodily functions and activity. It is composed of neurons, or nerve cells, which receive and transmit impulses, and neuroglia, also known as glial cells or more commonly as just glia (from the Greek, meaning glue), which assist the propagation of the nerve impulse as well as providing nutrients to the neuron.
Nervous tissue is made up of different types of nerve cells.The structural and functional unit of nerve tissue is the '''nerve cell''' or '''neuron'''.The prominent part of the neuron is the cell body or cyton.The short projections arising from the cell body is the '''dendrites''',the long extension of the cell body is '''axon''', the long stem-like part of the cell that sends action potential signals to the next cell.The axon ends in a bunch of branches called '''telodendrons'''.The axon is covered by a fatty sheath called '''myelin sheath'''.
Functions of the nervous system are sensory input, integration, control of muscles and glands, homeostasis, and mental activity.
===Activities===
===Activities===
#Activity No #1 '''page_name_concept_name_activity1'''
#Activity No #1[[Animal_tissues_Nerve_tissue]]
#Activity No #2 '''page_name_concept_name_activity2'''
#Activity No #2 '''page_name_concept_name_activity2'''