Choose the best answer for following question: Transmission of the nerve signal across a synapse is accomplishedby thea. movement of Na+ and K+.b. release of a neurotransmitter by a dendrite.c. release of a neurotransmitter by an axon.d. release of a neurotransmitter by a cell body.e. All of these are correct.

If an excitatory synapse and inhibitory synapse generate postsynaptic potentials on the same neuron what can happen? a. The generated potentials will sum up to make a larger postsynaptic potential. b. Nothing will happen, because inhibitory neurons will not form synapses on the same neurons as excitatory neurons. c. The postsynaptic potential generated by the inhibitory synapse will shunt the excitatory synapse, leading to a reduction in the postsynaptic potential. d. None of the above

Excitatory postsynaptic (EPSP'S) the resting membrane potentials A. have little or no effect b Hyperpolarize  c. do notchange    d. depolarize

What are all the possible ways that a neurotransmitter is removed from the synaptic cleft? Select all that apply. A. Taken up by postsynaptic transporters B. Taken up by presynaptic transporters C. Broken down by enzymes in the cleft D. Broken down by enzymes in the presynaptic side E. Broken down by postsynaptic enzymes

What determines the effect of neurotransmitter release on the post-synaptic neurons?  a. the size of the action potential. b. the post-synaptic receptors c. the neurotransmitter contained in the synaptic vesicles. d. the concentration of calcium ions reached in presynaptic terminals. e. the size of the synaptic vesicles.

What statement about synapse activity is false? A.The input of sodium ions by AMPA receptors is triggered by glutamate binding to the same receptors.B.Calcium entering the dendritic spine during synaptic transmission activates proteins that can potentiate synapse.C.Depolarization of the membrane caused by the arrival of calcium ions makes it possible to eject sodium blocking NMDA receptors.D.Glutamate can be released by the pre-synaptic button following the arrival of an action potential via the axon.

Sensory neurons transmit information towards the central nervous system. Which of the following is true concerning the movement of peripheral- information towards the central nervous system? A. Dendrites of the sensory neurons synapse with interneurons of the spinal cord. B. Axons of the sensory neurons synapse with motor neurons of the muscles involved in the spinal reflex. C. Axons of the motor neurons synapse with the interneurons of the spinal cord. D. Axons of the sensory neurons synapse with the interneurons of the spinal cord.

Please answer this multiple choice question?

.... For the remaining questions, the following scenario applies. You might want to draw it. Both neuron X and neuron Y are pre-synaptic to neuron Z. Neuron X secretes a neurotransmitter that opens sodium ion channels. Neuron Y secretes a neurotransmitter that opens potassium ion channels. Answer the following questions in the order given. The neurotransmitter from neuron X will neuron Z and is O depolarize, excitatory O hyperpolarize, excitatory O depolarize, inhibitory O hyperpolarize, inhibitory QUESTION 17 The neurotransmitter from neuron Y will neuron Z and is O depolarize, inhibitory depolarize, excitatory O hyperpolarize, excitatory O hyperpolarize, inhibitory QUESTION 18 Click Save and Submit to save and submit. Click Save All Answers to save all answers. 58 130 13 08 F3 000 000 F1 F2 F4 F5 95

Choose all of the processes below that are related to the nervous system communications: (multiple select question) A. Chemicals transported in blood B. Quick initiation and conclusion of regulatory effect in the body C. Slow initiation, but long-term regulatory effect in the body D. Chemicals released at synapses. E. Directly regulates the metabolism of tissues and cells