Please enable JavaScript.
Coggle requires JavaScript to display documents.
GEM2199 WEEK 8, effects of ageing on nervous system, nervous system…
GEM2199 WEEK 8
Neurons
cell body, soma, with extensions called axon or dendrites.
-
axon conducts nerve impulses away from the cell body, single axon from the axonal hillock.
-
neuroglia compromises half the brain and spinal cord tissues. support, nourish and protect neurons.
-
-
-
synapses:
chemical releases and receive chemical neurotransmitters. information is transferred across chemical synapse when action potential arrives at the axon terminal.
-
neurotransmitters includes effects on sleeping, anger, thinking, hunger, movement, memory and many other functions. enhancing or inhibiting effects.
-
-
nervous system controls, coordinates & integrates all body activities, maintains homeostasis. fast acting and communicates by electrical impulses.