Page 16 - SAAT BIOLOGY PART 2
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SAAT BIOLOGY MR.MOHAMED ELGAYAR MRPROF.NET
Sympathetic nervous system: controls organs in time of
stress.
Parasympathetic nervous system: controls organs when
the body is at rest.
• Nervous System & Circulatory System
It is a substance, natural or artificial that alerts the function
of the body.
• Effects on the nervous system
• Increases for neurotransmitter that is released into a
synapse.
• blocks a receptor site on a dendrite, preventing a
neurotransmitter from binding.
• prevents a neurotransmitter from leaving a synapse
• imitate a neurotransmitter.
MRPROF.NET MR.MOHAMED ELGAYAR MRPROF.NET@GMAIL.COM
