4) When the neurotransmitter molecules released from the axon terminals of a neuron have diffused across the synapse and have reached the dendrites of the target neuron, the neurotransmitters A) Stimulate neuron growth B) Enter the target neuron by membrane transport proteins (ion channels) C) Diffuse out of the synapse without causing any response in the target neuron D) Bind to receptor proteins
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3. What makes it possible for an impulse to move from one neuron to an adjacent neuron? (a) The axon of one neuron always touches the axon of the adjacent neuron. (b) Dendrites of one neuron always touch the axon of the adjacent neuron. (c) Neurotransmitters are released from the dendrites of one neuron and diffuse to the axon terminal of the adjacent neuron. (d) Neurotransmitters are released from the axon terminal of one neuron and diffuse to the dendrites of the adjacent neuron. (e) Cerebrospinal fluids are released from the axon terminal of one neuron and diffuse to the axons of the adjacent neuron.
Destini S.
While observing a post-synaptic neuron that receives input from many pre-synaptic neurons, you notice that, regardless of other input, the post-synaptic cell always has an action potential when one particular synapse is active. Which of the following is most likely true about this synapse? a) It is an excitatory axo-axonic synapse. b) It is an inhibitory axo-axonic synapse. c) It is one of several synapses close to the axon hillock. d) The presynaptic neuron at this synapse is tonically active.
Razan K.
When a neural impulse reaches the end of an axon, it triggers the release of chemical messengers called a. dendrites. b. synapses. c. action potentials. d. neurotransmitters.
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