Synapses Complete the notes below, filling in the blanks with the following terms decrease nanometres released receptor diffuses synapses presynaptic impulses chemical touch neurotransmitters postsynaptic binds stimulates reabsorbed Neurons do not 1 each other - there is a tiny gap between one neuron and the next in a neural pathway. These gaps are called. 2 Nerve next using 3 5 cannot cross these synapses: information is passed from one neuron to the messengers called When an impulse arrives at the end of the. into the synapse. This chemical messenger 20 Hi 9 6 neuron, the chemical messenger is 8 across the synapse: because the synapse is only about wide this takes a very short time. 11 On the other side of the synapse, the neurotransmitter binds with a the membrane of the neuron. As the neurotransmitter 10 molecule on 12 to the receptor it 13 a new nerve impulse in the postsynaptic neurone. • Finally, the chemical messenger is 14 back into the presynaptic neuron, ready to be used again. As levels of the neurotransmitter in the synapse, postsynaptic nerve ends. 15 stimulation of the Label the diagram below Direction of nerve Vimpulse 16 18 Presynaptic membrane 17 Postsynaptic membrane
Synapses Complete the notes below, filling in the blanks with the following terms decrease nanometres released receptor diffuses synapses presynaptic impulses chemical touch neurotransmitters postsynaptic binds stimulates reabsorbed Neurons do not 1 each other - there is a tiny gap between one neuron and the next in a neural pathway. These gaps are called. 2 Nerve next using 3 5 cannot cross these synapses: information is passed from one neuron to the messengers called When an impulse arrives at the end of the. into the synapse. This chemical messenger 20 Hi 9 6 neuron, the chemical messenger is 8 across the synapse: because the synapse is only about wide this takes a very short time. 11 On the other side of the synapse, the neurotransmitter binds with a the membrane of the neuron. As the neurotransmitter 10 molecule on 12 to the receptor it 13 a new nerve impulse in the postsynaptic neurone. • Finally, the chemical messenger is 14 back into the presynaptic neuron, ready to be used again. As levels of the neurotransmitter in the synapse, postsynaptic nerve ends. 15 stimulation of the Label the diagram below Direction of nerve Vimpulse 16 18 Presynaptic membrane 17 Postsynaptic membrane
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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