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Inhibitory fibres

Inhibitory fibres

nerve fibres that inhibit the activity of the nerve cells with which they have synaptic connections, or of the effector tissue (smooth muscle, heart muscle, glands) in which they terminate.

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The Heart

... attached, so in this case both parasympathetic and sympathetic nervous fibres are linked to the sino-atrial node. The nervous system uses action ... the muscle. Therefore Ach (acetylcholine) is a neurotransmitter that's inhibitory in this situation and slows down heart rate by slowing the rate ...

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by Babybel56
Sat Apr 23, 2011 6:51 pm
Forum: Human Biology
Topic: The Heart
Replies: 6
Views: 11666

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