a level Biology Fichas sobre Co-ordination of a heart beat, creado por sferrier96 el 03/02/2015.
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Creado por sferrier96
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Creado por sferrier96
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cardiac output=
what is the autonomic nervous system?
what two nervous systems make up the autonomic nervous system?
Where are chemoreceptors found?
what are chemoreceptors?
where in the brain do the parasympathetic and sympathetic nerves originate?
how is heart rate decreased in people with high blood pressure?
