Neuron Nerve Tissue - Connective tissue 5 Flashcards
Specialised for ..?
Conduction of electrical impulses from one region of the body to another
Grouped into?
Central Nervous System and Spinal cord
Peripheral Nervous system
Nerve tissue consists of 2 main cell kinds?
Neurons - cell, axon and dentrites
Neuroglia (‘Glue’ cells) supports connective tissue that forms myelin sheath to protect, repair and supply nutrients to the neuron.
What do neurones consist of?
Cell body
1 axon - impulse away from cell
Many dentrites - impulse to cell
Dentrites
Impulse to cell
Branched protoplasm is extension of nerve cell
Receptors - neurone receives its information - signal travels down ‘axon’
Cell body
Contains nucleus, mitochondria, ribosomes and other organelles and inclusions
Axon
Conducts nerve impulse towards synaptic terminals
Synapses
Electrical stimulation is transmitted onto dentrites via synapses
Synapse - point which impulse travels from one neurone to another .. axon .. to the next dentrite…